\[\boxed{\mathbf{819}.}\]
| \[№\] | \[Планета\ \] | \[\lg d\] | \[\lg T\] | \[\frac{\lg T}{\lg d}\] |
|---|---|---|---|---|
| 1 | \[Меркурий\] | \[- 0,412\] | \[- 0,618\] | \[1,5\] |
| 2 | \[Венера\] | \[- 0,141\] | \[- 0,211\] | \[1,5\] |
| 3 | \[Земля\] | \[0\] | \[0\] | \[-\] |
| 4 | \[Марс\] | \[0,183\] | \[0,274\] | \[1,5\] |
| 5 | \[Юпитер\] | \[0,716\] | \[1,074\] | \[1,5\] |
| 6 | \[Сатурн\] | \[0,08\] | \[1,460\] | \[1,5\] |
| 7 | \[Уран\] | \[1,283\] | \[1,924\] | \[1,5\] |
| 8 | \[Нептун\] | \[1,478\] | \[2,217\] | \[1,5\] |
| 9 | \[Плутон\] | \[1,597\] | \[2,395\] | \[1,5\] |

\[\frac{\lg T}{\lg d} = 1,5 = \frac{3}{2}\]
\[\log_{d}T = \frac{3}{2}\]
\[T = d^{\frac{3}{2}} - формула\ зависимости\]
\[\ \text{T\ }от\ \text{d.}\]
\[Ответ:T = d^{\frac{3}{2}}\text{.\ }\]