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Finding the Fourth Proportional to 477,981.33, 717,122.69 and 225,251.61

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Solution

The fourth proportional to 477,981.33, 717,122.69 and 225,251.61 is: 337,948.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,981.33 : 717,122.69 = 225,251.61 : x
  2. Step 2: Convert to fraction form
    477,981.33/717,122.69 = 225,251.61/x
  3. Step 3: Cross multiply
    477,981.33x = 717,122.69 × 225,251.61
  4. Step 4: Simplify right side
    477,981.33x = 161,533,040,490.03
  5. Step 5: Solve for x
    x = 161,533,040,490.03/477,981.33
  6. Step 6: Final answer
    x = 337,948.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.