\[\boxed{\mathbf{549}.}\]
\[\overline{x} = \sqrt[n]{x_{1} \cdot x_{2} \cdot \ldots \cdot x_{n}}\]
\[1)\ x_{1} = 1,11x;\ \ x_{2} = {1,11}^{2}x;\ \ \]
\[x_{3} = {1,11}^{3}x:\]
\[\overline{x} = \sqrt[3]{1,11x \cdot {1,11}^{2}x \cdot {1,11}^{3}x} =\]
\[= 1,11 \cdot 1,11 \cdot x = 1,23x.\]
\[2)\ x_{1} = 1,6x;\ \ x_{2} = 1,52x;\ \ \]
\[x_{3} = 1,368x:\]
\[\overline{x} = \sqrt[3]{1,6x \cdot {1,52}^{2}x \cdot {1,368}^{3}x} =\]
\[= \sqrt[3]{3,327x^{3}} \approx 1,49x.\]
\[Ответ:примерно\ равны.\]