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Finding the Fourth Proportional to 322,144.60, 444,781.90 and 201,340.12

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Solution

The fourth proportional to 322,144.60, 444,781.90 and 201,340.12 is: 277,988.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,144.60 : 444,781.90 = 201,340.12 : x
  2. Step 2: Convert to fraction form
    322,144.60/444,781.90 = 201,340.12/x
  3. Step 3: Cross multiply
    322,144.60x = 444,781.90 × 201,340.12
  4. Step 4: Simplify right side
    322,144.60x = 89,552,441,119.83
  5. Step 5: Solve for x
    x = 89,552,441,119.83/322,144.60
  6. Step 6: Final answer
    x = 277,988.34

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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.