Home / 641,806.24-885,658.84-351,362.20

Finding the Fourth Proportional to 641,806.24, 885,658.84 and 351,362.20

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Solution

The fourth proportional to 641,806.24, 885,658.84 and 351,362.20 is: 484,861.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,806.24 : 885,658.84 = 351,362.20 : x
  2. Step 2: Convert to fraction form
    641,806.24/885,658.84 = 351,362.20/x
  3. Step 3: Cross multiply
    641,806.24x = 885,658.84 × 351,362.20
  4. Step 4: Simplify right side
    641,806.24x = 311,187,038,471.85
  5. Step 5: Solve for x
    x = 311,187,038,471.85/641,806.24
  6. Step 6: Final answer
    x = 484,861.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.