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Finding the Fourth Proportional to 396,198.60, 593,248.14 and 238,209.72

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Solution

The fourth proportional to 396,198.60, 593,248.14 and 238,209.72 is: 356,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,198.60 : 593,248.14 = 238,209.72 : x
  2. Step 2: Convert to fraction form
    396,198.60/593,248.14 = 238,209.72/x
  3. Step 3: Cross multiply
    396,198.60x = 593,248.14 × 238,209.72
  4. Step 4: Simplify right side
    396,198.60x = 141,317,473,319.92
  5. Step 5: Solve for x
    x = 141,317,473,319.92/396,198.60
  6. Step 6: Final answer
    x = 356,683.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.