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Finding the Fourth Proportional to 854,737.28, 1,179,433.92 and 472,712

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Solution

The fourth proportional to 854,737.28, 1,179,433.92 and 472,712 is: 652,285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,737.28 : 1,179,433.92 = 472,712 : x
  2. Step 2: Convert to fraction form
    854,737.28/1,179,433.92 = 472,712/x
  3. Step 3: Cross multiply
    854,737.28x = 1,179,433.92 × 472,712
  4. Step 4: Simplify right side
    854,737.28x = 557,532,567,191.04
  5. Step 5: Solve for x
    x = 557,532,567,191.04/854,737.28
  6. Step 6: Final answer
    x = 652,285.30

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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.