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Finding the Fourth Proportional to 415,446.20, 623,136.90 and 162,677.60

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Solution

The fourth proportional to 415,446.20, 623,136.90 and 162,677.60 is: 244,003.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,446.20 : 623,136.90 = 162,677.60 : x
  2. Step 2: Convert to fraction form
    415,446.20/623,136.90 = 162,677.60/x
  3. Step 3: Cross multiply
    415,446.20x = 623,136.90 × 162,677.60
  4. Step 4: Simplify right side
    415,446.20x = 101,370,415,363.44
  5. Step 5: Solve for x
    x = 101,370,415,363.44/415,446.20
  6. Step 6: Final answer
    x = 244,003.71

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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.