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Finding the Fourth Proportional to 527,897.10, 791,845.65 and 520,023.90

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Solution

The fourth proportional to 527,897.10, 791,845.65 and 520,023.90 is: 780,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,897.10 : 791,845.65 = 520,023.90 : x
  2. Step 2: Convert to fraction form
    527,897.10/791,845.65 = 520,023.90/x
  3. Step 3: Cross multiply
    527,897.10x = 791,845.65 × 520,023.90
  4. Step 4: Simplify right side
    527,897.10x = 411,778,663,111.04
  5. Step 5: Solve for x
    x = 411,778,663,111.04/527,897.10
  6. Step 6: Final answer
    x = 780,035.85

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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.