Two tuning forks \(A\) and \(B\) are sounded together giving rise to 8 beats in 2 s.
When fork \(A\) is loaded with wax, the beat frequency is reduced to 4 beats in 2 s.
If the original frequency of tuning fork \(B\) is \(380\ \text{Hz}\), find the original frequency of tuning fork \(A\).
Given:
\[
f_B = 380\ \text{Hz}
\]