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Finding the Fourth Proportional to 572,737.28, 790,331.19 and 331,035.50

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Solution

The fourth proportional to 572,737.28, 790,331.19 and 331,035.50 is: 456,802.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,737.28 : 790,331.19 = 331,035.50 : x
  2. Step 2: Convert to fraction form
    572,737.28/790,331.19 = 331,035.50/x
  3. Step 3: Cross multiply
    572,737.28x = 790,331.19 × 331,035.50
  4. Step 4: Simplify right side
    572,737.28x = 261,627,676,695.59
  5. Step 5: Solve for x
    x = 261,627,676,695.59/572,737.28
  6. Step 6: Final answer
    x = 456,802.25

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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.