\[\boxed{\mathbf{497}.}\]
\[1)\ 6^{3x} = 6^{4}\]
\[3x = 4\]
\[\ x = \frac{4}{3} = 1\frac{1}{3}.\]
\[Ответ:\ \ x = 1\frac{1}{3}.\]
\[2)\ \left( \frac{2}{3} \right)^{2x} = \left( \frac{2}{3} \right)^{- 3}\]
\[2x = - 3\]
\[x = - \frac{3}{2}\]
\[x = - 1,5.\]
\[Ответ:\ \ x = - 1,5.\]
\[3)\ 9^{x} = 3^{2\sqrt{2}}\]
\[9^{x} = \left( 3^{2} \right)^{\sqrt{2}}\]
\[9^{x} = 9^{\sqrt{2}}\]
\[\ x = \sqrt{2}\]
\[Ответ:\ \ x = \sqrt{2}.\]
\[4)\ 32^{x} = 2^{10}\]
\[\left( 2^{5} \right)^{x} = 2^{10}\]
\[5x = 10\]
\[x = 2.\]
\[Ответ:\ \ x = 2.\]