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Finding the Fourth Proportional to 475,153.92, 655,529.76 and 271,216.20

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Solution

The fourth proportional to 475,153.92, 655,529.76 and 271,216.20 is: 374,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,153.92 : 655,529.76 = 271,216.20 : x
  2. Step 2: Convert to fraction form
    475,153.92/655,529.76 = 271,216.20/x
  3. Step 3: Cross multiply
    475,153.92x = 655,529.76 × 271,216.20
  4. Step 4: Simplify right side
    475,153.92x = 177,790,290,494.11
  5. Step 5: Solve for x
    x = 177,790,290,494.11/475,153.92
  6. Step 6: Final answer
    x = 374,174.10

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1.5x scale

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.