| x | × | 73 10 | × | 1 40 | + | x | × | 73 10 | + | 6898 | + | 73 10 | x | × | 1 2 | × | 1 100 | × | 3 | = | 422190 |
| 方程左边 = | x | × | 73 400 | + | x | × | 73 10 | + | 6898 | + | 219 2000 | x |
| = | 949 125 | x | + | 6898 |
949 125 | x | + | 6898 | = | 422190 |
949 125 | x | = | 422190 | − | 6898 |
949 125 | x | = | 415292 |
| x | = | 415292 | ÷ | 949 125 |
| = | 415292 | × | 125 949 |
| x | = | 51911500 949 |
| x | = | 54701.264489 |