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Finding the Fourth Proportional to 527,906.10, 791,859.15 and 520,032.90

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Solution

The fourth proportional to 527,906.10, 791,859.15 and 520,032.90 is: 780,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,906.10 : 791,859.15 = 520,032.90 : x
  2. Step 2: Convert to fraction form
    527,906.10/791,859.15 = 520,032.90/x
  3. Step 3: Cross multiply
    527,906.10x = 791,859.15 × 520,032.90
  4. Step 4: Simplify right side
    527,906.10x = 411,792,810,166.04
  5. Step 5: Solve for x
    x = 411,792,810,166.04/527,906.10
  6. Step 6: Final answer
    x = 780,049.35

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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.