\[\left( - \frac{3}{5}a^{2}bc^{3} \right)^{2} \cdot 5b^{2}c =\]
\[= \frac{9}{25}a^{4}b^{2}c^{6} \cdot 5b^{2}c = 1,8a^{4}b^{4}c^{7}.\]