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Finding the Fourth Proportional to 503,025.20, 754,278.60 and 187,319.60

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Solution

The fourth proportional to 503,025.20, 754,278.60 and 187,319.60 is: 280,882.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,025.20 : 754,278.60 = 187,319.60 : x
  2. Step 2: Convert to fraction form
    503,025.20/754,278.60 = 187,319.60/x
  3. Step 3: Cross multiply
    503,025.20x = 754,278.60 × 187,319.60
  4. Step 4: Simplify right side
    503,025.20x = 141,291,165,640.56
  5. Step 5: Solve for x
    x = 141,291,165,640.56/503,025.20
  6. Step 6: Final answer
    x = 280,882.88

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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.