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Finding the Fourth Proportional to 619,511.40, 927,711.90 and 591,517.80

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Solution

The fourth proportional to 619,511.40, 927,711.90 and 591,517.80 is: 885,791.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,511.40 : 927,711.90 = 591,517.80 : x
  2. Step 2: Convert to fraction form
    619,511.40/927,711.90 = 591,517.80/x
  3. Step 3: Cross multiply
    619,511.40x = 927,711.90 × 591,517.80
  4. Step 4: Simplify right side
    619,511.40x = 548,758,102,121.82
  5. Step 5: Solve for x
    x = 548,758,102,121.82/619,511.40
  6. Step 6: Final answer
    x = 885,791.77

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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.