| ( | X | + | 223 25 | + | 219 25 | + | 477 50 | ) | ÷ | 4 | = | X |
| 方程左边 = | X | × | 1 4 | + | 223 25 | × | 1 4 | + | 219 25 | × | 1 4 | + | 477 50 | × | 1 4 |
| = | X | × | 1 4 | + | 223 100 | + | 219 100 | + | 477 200 |
| = | 1 4 | X | + | 1361 200 |
1 4 | X | + | 1361 200 | = | X |
1 4 | X | − | X | = | - | 1361 200 |
| - | 3 4 | X | = | - | 1361 200 |
1361 200 | = | 3 4 | X |
3 4 | X | = | 1361 200 |
| X | = | 1361 200 | ÷ | 3 4 |
| = | 1361 200 | × | 4 3 |
| = | 1361 50 | × | 1 3 |
| X | = | 1361 150 |
| X | = | 9.073333 |