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Finding the Fourth Proportional to 432,753.57, 649,132.83 and 117,213.21

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Solution

The fourth proportional to 432,753.57, 649,132.83 and 117,213.21 is: 175,820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,753.57 : 649,132.83 = 117,213.21 : x
  2. Step 2: Convert to fraction form
    432,753.57/649,132.83 = 117,213.21/x
  3. Step 3: Cross multiply
    432,753.57x = 649,132.83 × 117,213.21
  4. Step 4: Simplify right side
    432,753.57x = 76,086,942,720.68
  5. Step 5: Solve for x
    x = 76,086,942,720.68/432,753.57
  6. Step 6: Final answer
    x = 175,820.49

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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.