| X | = | 1250 | × | 1 10 | ÷ | ( | 784 25 | × | 1 1000000 | × | 8 | ) |
| 方程两边同时乘以: | ( | 784 25 | × | 1 1000000 | × | 8 | ) |
| X | ( | 784 25 | × | 1 1000000 | × | 8 | ) | = | 1250 | × | 1 10 |
| X | × | 784 25 | × | 1 1000000 | × | 8 | = | 1250 | × | 1 10 |
| X | × | 98 390625 | = | 125 |
| X | = | 125 | ÷ | 98 390625 |
| = | 125 | × | 390625 98 |
| X | = | 48828125 98 |
| X | = | 498246.173469 |