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Finding the Fourth Proportional to 396,997.40, 595,406.84 and 112,681.94

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Solution

The fourth proportional to 396,997.40, 595,406.84 and 112,681.94 is: 168,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,997.40 : 595,406.84 = 112,681.94 : x
  2. Step 2: Convert to fraction form
    396,997.40/595,406.84 = 112,681.94/x
  3. Step 3: Cross multiply
    396,997.40x = 595,406.84 × 112,681.94
  4. Step 4: Simplify right side
    396,997.40x = 67,091,594,280.03
  5. Step 5: Solve for x
    x = 67,091,594,280.03/396,997.40
  6. Step 6: Final answer
    x = 168,997.56

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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.