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Finding the Fourth Proportional to 418,685.89, 577,774.20 and 237,414.37

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Solution

The fourth proportional to 418,685.89, 577,774.20 and 237,414.37 is: 327,624.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,685.89 : 577,774.20 = 237,414.37 : x
  2. Step 2: Convert to fraction form
    418,685.89/577,774.20 = 237,414.37/x
  3. Step 3: Cross multiply
    418,685.89x = 577,774.20 × 237,414.37
  4. Step 4: Simplify right side
    418,685.89x = 137,171,897,695.25
  5. Step 5: Solve for x
    x = 137,171,897,695.25/418,685.89
  6. Step 6: Final answer
    x = 327,624.84

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1.5x scale

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.