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Finding the Fourth Proportional to 396,968.33, 595,475.32 and 112,636.64

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Solution

The fourth proportional to 396,968.33, 595,475.32 and 112,636.64 is: 168,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,968.33 : 595,475.32 = 112,636.64 : x
  2. Step 2: Convert to fraction form
    396,968.33/595,475.32 = 112,636.64/x
  3. Step 3: Cross multiply
    396,968.33x = 595,475.32 × 112,636.64
  4. Step 4: Simplify right side
    396,968.33x = 67,072,340,454.82
  5. Step 5: Solve for x
    x = 67,072,340,454.82/396,968.33
  6. Step 6: Final answer
    x = 168,961.44

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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.