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Finding the Fourth Proportional to 396,754.58, 595,154.34 and 126,906.41

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Solution

The fourth proportional to 396,754.58, 595,154.34 and 126,906.41 is: 190,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,754.58 : 595,154.34 = 126,906.41 : x
  2. Step 2: Convert to fraction form
    396,754.58/595,154.34 = 126,906.41/x
  3. Step 3: Cross multiply
    396,754.58x = 595,154.34 × 126,906.41
  4. Step 4: Simplify right side
    396,754.58x = 75,528,897,709.55
  5. Step 5: Solve for x
    x = 75,528,897,709.55/396,754.58
  6. Step 6: Final answer
    x = 190,366.80

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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.