Suppose that  $4^{a}=5$, $5^{b}=6$, $6^{c}=7,$ and  $7^{d}=8$. What is $a\cdot b\cdot c\cdot d$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Suppose that  $4^{a}=5$, $5^{b}=6$, $6^{c}=7,$ and  $7^{d}=8$. What is $a\cdot b\cdot c\cdot d$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\frac{3}{2}
Suppose that  $4^{a}=5$, $5^{b}=6$, $6^{c}=7,$ and  $7^{d}=8$. What is $a\cdot b\cdot c\cdot d$?
train