DJ Vani's CD cabinet is four-and-a-half times as long as it is wide, which is a third of its height.

If its volume is 864,000 cc, what is the width of the CD cabinet?

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DJ Vani's CD cabinet is four-and-a-half times as long as it is wide, which is a third of its height.

If its volume is 864,000 cc, what is the width of the CD cabinet?

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Answer is OK!

But 12.15 is not OK, it should be 13.5