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Finding the Fourth Proportional to 396,596.60, 547,100.58 and 253,205.96

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Solution

The fourth proportional to 396,596.60, 547,100.58 and 253,205.96 is: 349,294.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,596.60 : 547,100.58 = 253,205.96 : x
  2. Step 2: Convert to fraction form
    396,596.60/547,100.58 = 253,205.96/x
  3. Step 3: Cross multiply
    396,596.60x = 547,100.58 × 253,205.96
  4. Step 4: Simplify right side
    396,596.60x = 138,529,127,575.46
  5. Step 5: Solve for x
    x = 138,529,127,575.46/396,596.60
  6. Step 6: Final answer
    x = 349,294.79

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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.