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Finding the Fourth Proportional to 396,697.34, 595,134.04 and 130,447.10

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Solution

The fourth proportional to 396,697.34, 595,134.04 and 130,447.10 is: 195,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,697.34 : 595,134.04 = 130,447.10 : x
  2. Step 2: Convert to fraction form
    396,697.34/595,134.04 = 130,447.10/x
  3. Step 3: Cross multiply
    396,697.34x = 595,134.04 × 130,447.10
  4. Step 4: Simplify right side
    396,697.34x = 77,633,509,629.28
  5. Step 5: Solve for x
    x = 77,633,509,629.28/396,697.34
  6. Step 6: Final answer
    x = 195,699.60

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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.