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Finding the Fourth Proportional to 394,416.40, 591,624.60 and 194,832.40

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Solution

The fourth proportional to 394,416.40, 591,624.60 and 194,832.40 is: 292,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,416.40 : 591,624.60 = 194,832.40 : x
  2. Step 2: Convert to fraction form
    394,416.40/591,624.60 = 194,832.40/x
  3. Step 3: Cross multiply
    394,416.40x = 591,624.60 × 194,832.40
  4. Step 4: Simplify right side
    394,416.40x = 115,267,640,717.04
  5. Step 5: Solve for x
    x = 115,267,640,717.04/394,416.40
  6. Step 6: Final answer
    x = 292,248.60

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Similar ratio
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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.