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Finding the Fourth Proportional to 396,306.80, 594,453.32 and 159,643.44

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Solution

The fourth proportional to 396,306.80, 594,453.32 and 159,643.44 is: 239,462.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,306.80 : 594,453.32 = 159,643.44 : x
  2. Step 2: Convert to fraction form
    396,306.80/594,453.32 = 159,643.44/x
  3. Step 3: Cross multiply
    396,306.80x = 594,453.32 × 159,643.44
  4. Step 4: Simplify right side
    396,306.80x = 94,900,572,924.22
  5. Step 5: Solve for x
    x = 94,900,572,924.22/396,306.80
  6. Step 6: Final answer
    x = 239,462.39

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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.