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Finding the Fourth Proportional to 276,446.20, 413,891.70 and 248,452.60

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Solution

The fourth proportional to 276,446.20, 413,891.70 and 248,452.60 is: 371,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,446.20 : 413,891.70 = 248,452.60 : x
  2. Step 2: Convert to fraction form
    276,446.20/413,891.70 = 248,452.60/x
  3. Step 3: Cross multiply
    276,446.20x = 413,891.70 × 248,452.60
  4. Step 4: Simplify right side
    276,446.20x = 102,832,468,983.42
  5. Step 5: Solve for x
    x = 102,832,468,983.42/276,446.20
  6. Step 6: Final answer
    x = 371,980.04

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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.