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Finding the Fourth Proportional to 619,130.70, 928,542.24 and 349,377.27

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Solution

The fourth proportional to 619,130.70, 928,542.24 and 349,377.27 is: 523,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,130.70 : 928,542.24 = 349,377.27 : x
  2. Step 2: Convert to fraction form
    619,130.70/928,542.24 = 349,377.27/x
  3. Step 3: Cross multiply
    619,130.70x = 928,542.24 × 349,377.27
  4. Step 4: Simplify right side
    619,130.70x = 324,411,552,890.89
  5. Step 5: Solve for x
    x = 324,411,552,890.89/619,130.70
  6. Step 6: Final answer
    x = 523,979.11

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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.