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Finding the Third Proportional to 267,553.13 and 391,729.50

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Solution

The third proportional to 267,553.13 and 391,729.50 is: 573,538.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,553.13 : 391,729.50 = 391,729.50 : x
  2. Step 2: Convert to fraction form
    267,553.13/391,729.50 = 391,729.50/x
  3. Step 3: Cross multiply
    267,553.13x = 391,729.50 × 391,729.50
  4. Step 4: Simplify right side
    267,553.13x = 153,452,001,170.25
  5. Step 5: Solve for x
    x = 153,452,001,170.25/267,553.13
  6. Step 6: Final answer
    x = 573,538.44

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.