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Finding the Fourth Proportional to 834,687, 1,252,192.85 and 354,909.29

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Solution

The fourth proportional to 834,687, 1,252,192.85 and 354,909.29 is: 532,432.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,687 : 1,252,192.85 = 354,909.29 : x
  2. Step 2: Convert to fraction form
    834,687/1,252,192.85 = 354,909.29/x
  3. Step 3: Cross multiply
    834,687x = 1,252,192.85 × 354,909.29
  4. Step 4: Simplify right side
    834,687x = 444,414,867,301.07
  5. Step 5: Solve for x
    x = 444,414,867,301.07/834,687
  6. Step 6: Final answer
    x = 532,432.96

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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.