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Finding the Fourth Proportional to 396,576.86, 547,073.33 and 253,186.20

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Solution

The fourth proportional to 396,576.86, 547,073.33 and 253,186.20 is: 349,267.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,576.86 : 547,073.33 = 253,186.20 : x
  2. Step 2: Convert to fraction form
    396,576.86/547,073.33 = 253,186.20/x
  3. Step 3: Cross multiply
    396,576.86x = 547,073.33 × 253,186.20
  4. Step 4: Simplify right side
    396,576.86x = 138,511,416,278.12
  5. Step 5: Solve for x
    x = 138,511,416,278.12/396,576.86
  6. Step 6: Final answer
    x = 349,267.52

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1.5x scale

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.