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Finding the Fourth Proportional to 417,123.60, 625,685.40 and 227,510.70

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Solution

The fourth proportional to 417,123.60, 625,685.40 and 227,510.70 is: 341,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,123.60 : 625,685.40 = 227,510.70 : x
  2. Step 2: Convert to fraction form
    417,123.60/625,685.40 = 227,510.70/x
  3. Step 3: Cross multiply
    417,123.60x = 625,685.40 × 227,510.70
  4. Step 4: Simplify right side
    417,123.60x = 142,350,123,333.78
  5. Step 5: Solve for x
    x = 142,350,123,333.78/417,123.60
  6. Step 6: Final answer
    x = 341,266.05

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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.