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Finding the Fourth Proportional to 396,247.60, 594,390.80 and 159,558.32

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Solution

The fourth proportional to 396,247.60, 594,390.80 and 159,558.32 is: 239,345.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,247.60 : 594,390.80 = 159,558.32 : x
  2. Step 2: Convert to fraction form
    396,247.60/594,390.80 = 159,558.32/x
  3. Step 3: Cross multiply
    396,247.60x = 594,390.80 × 159,558.32
  4. Step 4: Simplify right side
    396,247.60x = 94,839,997,471.46
  5. Step 5: Solve for x
    x = 94,839,997,471.46/396,247.60
  6. Step 6: Final answer
    x = 239,345.29

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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.