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Finding the Fourth Proportional to 441,998.80, 662,998.20 and 161,717.20

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Solution

The fourth proportional to 441,998.80, 662,998.20 and 161,717.20 is: 242,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,998.80 : 662,998.20 = 161,717.20 : x
  2. Step 2: Convert to fraction form
    441,998.80/662,998.20 = 161,717.20/x
  3. Step 3: Cross multiply
    441,998.80x = 662,998.20 × 161,717.20
  4. Step 4: Simplify right side
    441,998.80x = 107,218,212,509.04
  5. Step 5: Solve for x
    x = 107,218,212,509.04/441,998.80
  6. Step 6: Final answer
    x = 242,575.80

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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.