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Finding the Fourth Proportional to 322,153.32, 444,793.98 and 201,348.90

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Solution

The fourth proportional to 322,153.32, 444,793.98 and 201,348.90 is: 278,000.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,153.32 : 444,793.98 = 201,348.90 : x
  2. Step 2: Convert to fraction form
    322,153.32/444,793.98 = 201,348.90/x
  3. Step 3: Cross multiply
    322,153.32x = 444,793.98 × 201,348.90
  4. Step 4: Simplify right side
    322,153.32x = 89,558,778,599.62
  5. Step 5: Solve for x
    x = 89,558,778,599.62/322,153.32
  6. Step 6: Final answer
    x = 278,000.48

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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.