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Finding the Fourth Proportional to 417,793.12, 576,493.68 and 238,910.56

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Solution

The fourth proportional to 417,793.12, 576,493.68 and 238,910.56 is: 329,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,793.12 : 576,493.68 = 238,910.56 : x
  2. Step 2: Convert to fraction form
    417,793.12/576,493.68 = 238,910.56/x
  3. Step 3: Cross multiply
    417,793.12x = 576,493.68 × 238,910.56
  4. Step 4: Simplify right side
    417,793.12x = 137,730,427,925.26
  5. Step 5: Solve for x
    x = 137,730,427,925.26/417,793.12
  6. Step 6: Final answer
    x = 329,661.79

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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.