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Finding the Fourth Proportional to 396,800.46, 547,499.44 and 235,709.82

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Solution

The fourth proportional to 396,800.46, 547,499.44 and 235,709.82 is: 325,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,800.46 : 547,499.44 = 235,709.82 : x
  2. Step 2: Convert to fraction form
    396,800.46/547,499.44 = 235,709.82/x
  3. Step 3: Cross multiply
    396,800.46x = 547,499.44 × 235,709.82
  4. Step 4: Simplify right side
    396,800.46x = 129,050,991,125.73
  5. Step 5: Solve for x
    x = 129,050,991,125.73/396,800.46
  6. Step 6: Final answer
    x = 325,228.94

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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.