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Finding the Fourth Proportional to 527,915.60, 791,873.40 and 520,042.40

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Solution

The fourth proportional to 527,915.60, 791,873.40 and 520,042.40 is: 780,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,915.60 : 791,873.40 = 520,042.40 : x
  2. Step 2: Convert to fraction form
    527,915.60/791,873.40 = 520,042.40/x
  3. Step 3: Cross multiply
    527,915.60x = 791,873.40 × 520,042.40
  4. Step 4: Simplify right side
    527,915.60x = 411,807,743,432.16
  5. Step 5: Solve for x
    x = 411,807,743,432.16/527,915.60
  6. Step 6: Final answer
    x = 780,063.60

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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.