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Finding the Fourth Proportional to 625,744.80, 938,444.40 and 226,310.40

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Solution

The fourth proportional to 625,744.80, 938,444.40 and 226,310.40 is: 339,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,744.80 : 938,444.40 = 226,310.40 : x
  2. Step 2: Convert to fraction form
    625,744.80/938,444.40 = 226,310.40/x
  3. Step 3: Cross multiply
    625,744.80x = 938,444.40 × 226,310.40
  4. Step 4: Simplify right side
    625,744.80x = 212,379,727,541.76
  5. Step 5: Solve for x
    x = 212,379,727,541.76/625,744.80
  6. Step 6: Final answer
    x = 339,403.10

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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.