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Finding the Fourth Proportional to 625,736, 938,619.36 and 226,414.40

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Solution

The fourth proportional to 625,736, 938,619.36 and 226,414.40 is: 339,627.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,736 : 938,619.36 = 226,414.40 : x
  2. Step 2: Convert to fraction form
    625,736/938,619.36 = 226,414.40/x
  3. Step 3: Cross multiply
    625,736x = 938,619.36 × 226,414.40
  4. Step 4: Simplify right side
    625,736x = 212,516,939,222.78
  5. Step 5: Solve for x
    x = 212,516,939,222.78/625,736
  6. Step 6: Final answer
    x = 339,627.16

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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.