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Finding the Fourth Proportional to 396,317.70, 594,865.35 and 196,863.30

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Solution

The fourth proportional to 396,317.70, 594,865.35 and 196,863.30 is: 295,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,317.70 : 594,865.35 = 196,863.30 : x
  2. Step 2: Convert to fraction form
    396,317.70/594,865.35 = 196,863.30/x
  3. Step 3: Cross multiply
    396,317.70x = 594,865.35 × 196,863.30
  4. Step 4: Simplify right side
    396,317.70x = 117,107,155,856.66
  5. Step 5: Solve for x
    x = 117,107,155,856.66/396,317.70
  6. Step 6: Final answer
    x = 295,488.08

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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.