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Finding the Fourth Proportional to 396,778.68, 595,172.88 and 116,301.60

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Solution

The fourth proportional to 396,778.68, 595,172.88 and 116,301.60 is: 174,453.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,778.68 : 595,172.88 = 116,301.60 : x
  2. Step 2: Convert to fraction form
    396,778.68/595,172.88 = 116,301.60/x
  3. Step 3: Cross multiply
    396,778.68x = 595,172.88 × 116,301.60
  4. Step 4: Simplify right side
    396,778.68x = 69,219,558,220.61
  5. Step 5: Solve for x
    x = 69,219,558,220.61/396,778.68
  6. Step 6: Final answer
    x = 174,453.82

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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.