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Finding the Fourth Proportional to 396,145.20, 593,561.70 and 337,096.20

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Solution

The fourth proportional to 396,145.20, 593,561.70 and 337,096.20 is: 505,086.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,145.20 : 593,561.70 = 337,096.20 : x
  2. Step 2: Convert to fraction form
    396,145.20/593,561.70 = 337,096.20/x
  3. Step 3: Cross multiply
    396,145.20x = 593,561.70 × 337,096.20
  4. Step 4: Simplify right side
    396,145.20x = 200,087,393,535.54
  5. Step 5: Solve for x
    x = 200,087,393,535.54/396,145.20
  6. Step 6: Final answer
    x = 505,086.00

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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.