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Finding the Fourth Proportional to 625,620.74, 938,431.11 and 226,168.07

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Solution

The fourth proportional to 625,620.74, 938,431.11 and 226,168.07 is: 339,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,620.74 : 938,431.11 = 226,168.07 : x
  2. Step 2: Convert to fraction form
    625,620.74/938,431.11 = 226,168.07/x
  3. Step 3: Cross multiply
    625,620.74x = 938,431.11 × 226,168.07
  4. Step 4: Simplify right side
    625,620.74x = 212,243,152,976.66
  5. Step 5: Solve for x
    x = 212,243,152,976.66/625,620.74
  6. Step 6: Final answer
    x = 339,252.11

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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.