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Finding the Fourth Proportional to 396,874.54, 595,393.80 and 130,651.06

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Solution

The fourth proportional to 396,874.54, 595,393.80 and 130,651.06 is: 196,003.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,874.54 : 595,393.80 = 130,651.06 : x
  2. Step 2: Convert to fraction form
    396,874.54/595,393.80 = 130,651.06/x
  3. Step 3: Cross multiply
    396,874.54x = 595,393.80 × 130,651.06
  4. Step 4: Simplify right side
    396,874.54x = 77,788,831,087.43
  5. Step 5: Solve for x
    x = 77,788,831,087.43/396,874.54
  6. Step 6: Final answer
    x = 196,003.58

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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.