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Finding the Fourth Proportional to 625,202.34, 862,780.06 and 338,722.43

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Solution

The fourth proportional to 625,202.34, 862,780.06 and 338,722.43 is: 467,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,202.34 : 862,780.06 = 338,722.43 : x
  2. Step 2: Convert to fraction form
    625,202.34/862,780.06 = 338,722.43/x
  3. Step 3: Cross multiply
    625,202.34x = 862,780.06 × 338,722.43
  4. Step 4: Simplify right side
    625,202.34x = 292,242,954,588.25
  5. Step 5: Solve for x
    x = 292,242,954,588.25/625,202.34
  6. Step 6: Final answer
    x = 467,437.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.