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Finding the Fourth Proportional to 928,691.12, 1,391,170.32 and 484,526

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Solution

The fourth proportional to 928,691.12, 1,391,170.32 and 484,526 is: 725,815.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,691.12 : 1,391,170.32 = 484,526 : x
  2. Step 2: Convert to fraction form
    928,691.12/1,391,170.32 = 484,526/x
  3. Step 3: Cross multiply
    928,691.12x = 1,391,170.32 × 484,526
  4. Step 4: Simplify right side
    928,691.12x = 674,058,190,468.32
  5. Step 5: Solve for x
    x = 674,058,190,468.32/928,691.12
  6. Step 6: Final answer
    x = 725,815.26

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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.