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Finding the Fourth Proportional to 542,221.80, 747,600.94 and 439,957.68

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Solution

The fourth proportional to 542,221.80, 747,600.94 and 439,957.68 is: 606,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,221.80 : 747,600.94 = 439,957.68 : x
  2. Step 2: Convert to fraction form
    542,221.80/747,600.94 = 439,957.68/x
  3. Step 3: Cross multiply
    542,221.80x = 747,600.94 × 439,957.68
  4. Step 4: Simplify right side
    542,221.80x = 328,912,775,128.22
  5. Step 5: Solve for x
    x = 328,912,775,128.22/542,221.80
  6. Step 6: Final answer
    x = 606,601.90

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