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Finding the Fourth Proportional to 396,676.82, 595,034.37 and 130,431.44

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Solution

The fourth proportional to 396,676.82, 595,034.37 and 130,431.44 is: 195,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,676.82 : 595,034.37 = 130,431.44 : x
  2. Step 2: Convert to fraction form
    396,676.82/595,034.37 = 130,431.44/x
  3. Step 3: Cross multiply
    396,676.82x = 595,034.37 × 130,431.44
  4. Step 4: Simplify right side
    396,676.82x = 77,611,191,216.18
  5. Step 5: Solve for x
    x = 77,611,191,216.18/396,676.82
  6. Step 6: Final answer
    x = 195,653.46

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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.