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Finding the Fourth Proportional to 527,902.10, 791,853.15 and 520,028.90

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Solution

The fourth proportional to 527,902.10, 791,853.15 and 520,028.90 is: 780,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,902.10 : 791,853.15 = 520,028.90 : x
  2. Step 2: Convert to fraction form
    527,902.10/791,853.15 = 520,028.90/x
  3. Step 3: Cross multiply
    527,902.10x = 791,853.15 × 520,028.90
  4. Step 4: Simplify right side
    527,902.10x = 411,786,522,556.04
  5. Step 5: Solve for x
    x = 411,786,522,556.04/527,902.10
  6. Step 6: Final answer
    x = 780,043.35

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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.