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Finding the Fourth Proportional to 432,885.67, 649,399.52 and 133,359.55

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Solution

The fourth proportional to 432,885.67, 649,399.52 and 133,359.55 is: 200,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,885.67 : 649,399.52 = 133,359.55 : x
  2. Step 2: Convert to fraction form
    432,885.67/649,399.52 = 133,359.55/x
  3. Step 3: Cross multiply
    432,885.67x = 649,399.52 × 133,359.55
  4. Step 4: Simplify right side
    432,885.67x = 86,603,627,757.42
  5. Step 5: Solve for x
    x = 86,603,627,757.42/432,885.67
  6. Step 6: Final answer
    x = 200,061.20

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1.5x scale

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.