How to resize animation in libgdx?

I want to draw an animation, the size of each frame is 500x500px but when I try to resize, the animation seems to rotate…

Here the code to load frames and create animation:

    Texture fireSheet = new Texture(Gdx.files.internal("fire_sheet.png"));

    TextureRegion[] fireFrames = new TextureRegion[4];

    fireFrames[0] = new TextureRegion(fireSheet,0,0,500,500);
    fireFrames[1] = new TextureRegion(fireSheet,700,0,1200,500);
    fireFrames[2] = new TextureRegion(fireSheet,1450,0,1950,500);
    fireFrames[3] = new TextureRegion(fireSheet,2250,0,2750,500);


    fireAnimation = new Animation(0.5f, fireFrames);

In draw method I resize the animation in this way:

    public void draw(Batch batch, float parentAlpha) {

        batch.enableBlending();
        stateTime += Gdx.graphics.getDeltaTime();

        currentFrame = Assets.fireAnimation.getKeyFrame(stateTime, true);

        batch.draw(currentFrame, getX(), getY(), 200, 200 );

    }

So if I use:

batch.draw(currentFrame, getX(), getY() ); // WORKS!!! But too Big for me 500x500px

Instead if I use:

batch.draw(currentFrame, getX(), getY(), 200, 200 ); // Animation doesn't work properly

What Can I do?

Thank you in advance