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Finding the Fourth Proportional to 624,750.80, 861,511.70 and 534,405.83

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Solution

The fourth proportional to 624,750.80, 861,511.70 and 534,405.83 is: 736,928.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,750.80 : 861,511.70 = 534,405.83 : x
  2. Step 2: Convert to fraction form
    624,750.80/861,511.70 = 534,405.83/x
  3. Step 3: Cross multiply
    624,750.80x = 861,511.70 × 534,405.83
  4. Step 4: Simplify right side
    624,750.80x = 460,396,868,113.62
  5. Step 5: Solve for x
    x = 460,396,868,113.62/624,750.80
  6. Step 6: Final answer
    x = 736,928.82

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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.