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Finding the Fourth Proportional to 396,616.43, 594,798.48 and 130,315.56

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Solution

The fourth proportional to 396,616.43, 594,798.48 and 130,315.56 is: 195,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,616.43 : 594,798.48 = 130,315.56 : x
  2. Step 2: Convert to fraction form
    396,616.43/594,798.48 = 130,315.56/x
  3. Step 3: Cross multiply
    396,616.43x = 594,798.48 × 130,315.56
  4. Step 4: Simplify right side
    396,616.43x = 77,511,497,008.35
  5. Step 5: Solve for x
    x = 77,511,497,008.35/396,616.43
  6. Step 6: Final answer
    x = 195,431.89

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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.