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Finding the Fourth Proportional to 396,613.00, 547,325.94 and 215,324.94

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Solution

The fourth proportional to 396,613.00, 547,325.94 and 215,324.94 is: 297,148.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,613.00 : 547,325.94 = 215,324.94 : x
  2. Step 2: Convert to fraction form
    396,613.00/547,325.94 = 215,324.94/x
  3. Step 3: Cross multiply
    396,613.00x = 547,325.94 × 215,324.94
  4. Step 4: Simplify right side
    396,613.00x = 117,852,928,050.88
  5. Step 5: Solve for x
    x = 117,852,928,050.88/396,613.00
  6. Step 6: Final answer
    x = 297,148.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.