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Finding the Fourth Proportional to 396,871.54, 595,389.33 and 130,648.03

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Solution

The fourth proportional to 396,871.54, 595,389.33 and 130,648.03 is: 195,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,871.54 : 595,389.33 = 130,648.03 : x
  2. Step 2: Convert to fraction form
    396,871.54/595,389.33 = 130,648.03/x
  3. Step 3: Cross multiply
    396,871.54x = 595,389.33 × 130,648.03
  4. Step 4: Simplify right side
    396,871.54x = 77,786,442,394.28
  5. Step 5: Solve for x
    x = 77,786,442,394.28/396,871.54
  6. Step 6: Final answer
    x = 195,999.04

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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.