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Finding the Fourth Proportional to 396,015.22, 594,013.02 and 115,534.90

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Solution

The fourth proportional to 396,015.22, 594,013.02 and 115,534.90 is: 173,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,015.22 : 594,013.02 = 115,534.90 : x
  2. Step 2: Convert to fraction form
    396,015.22/594,013.02 = 115,534.90/x
  3. Step 3: Cross multiply
    396,015.22x = 594,013.02 × 115,534.90
  4. Step 4: Simplify right side
    396,015.22x = 68,629,234,864.40
  5. Step 5: Solve for x
    x = 68,629,234,864.40/396,015.22
  6. Step 6: Final answer
    x = 173,299.49

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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.