Suppose that $y^3$ varies inversely with $\sqrt[3]{z}$. If $y=2$ when $z=1$, find the value of $z$ when $y=4$. Express your answer in simplest fractional form.
Question:
Suppose that $y^3$ varies inversely with $\sqrt[3]{z}$. If $y=2$ when $z=1$, find the value of $z$ when $y=4$. Express your answer in simplest fractional form.
Answer:
Let's think step by step.

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\frac1{512}
Suppose that $y^3$ varies inversely with $\sqrt[3]{z}$. If $y=2$ when $z=1$, find the value of $z$ when $y=4$. Express your answer in simplest fractional form.
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