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Finding the Fourth Proportional to 396,651.44, 593,648.76 and 325,571.78

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Solution

The fourth proportional to 396,651.44, 593,648.76 and 325,571.78 is: 487,267.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,651.44 : 593,648.76 = 325,571.78 : x
  2. Step 2: Convert to fraction form
    396,651.44/593,648.76 = 325,571.78/x
  3. Step 3: Cross multiply
    396,651.44x = 593,648.76 × 325,571.78
  4. Step 4: Simplify right side
    396,651.44x = 193,275,283,487.99
  5. Step 5: Solve for x
    x = 193,275,283,487.99/396,651.44
  6. Step 6: Final answer
    x = 487,267.32

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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.