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Finding the Fourth Proportional to 297,729.69, 446,593.86 and 129,228.18

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Solution

The fourth proportional to 297,729.69, 446,593.86 and 129,228.18 is: 193,841.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,729.69 : 446,593.86 = 129,228.18 : x
  2. Step 2: Convert to fraction form
    297,729.69/446,593.86 = 129,228.18/x
  3. Step 3: Cross multiply
    297,729.69x = 446,593.86 × 129,228.18
  4. Step 4: Simplify right side
    297,729.69x = 57,712,511,726.97
  5. Step 5: Solve for x
    x = 57,712,511,726.97/297,729.69
  6. Step 6: Final answer
    x = 193,841.98

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1.5x scale

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.