| p | = | 5617 10000 | × | 419 1000 | ÷ | ( | 5617 10000 | − | 21 100 | ) |
| Multiply both sides of the equation by: | ( | 5617 10000 | − | 21 100 | ) |
| p | ( | 5617 10000 | − | 21 100 | ) | = | 5617 10000 | × | 419 1000 |
| p | × | 5617 10000 | − | p | × | 21 100 | = | 5617 10000 | × | 419 1000 |
| p | × | 5617 10000 | − | p | × | 21 100 | = | 2353523 10000000 |
3517 10000 | p | = | 2353523 10000000 |
| p | = | 2353523 10000000 | ÷ | 3517 10000 |
| = | 2353523 10000000 | × | 10000 3517 |
| = | 2353523 1000 | × | 1 3517 |
| p | = | 2353523 3517000 |
| p | = | 0.669185 |