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Finding the Fourth Proportional to 598,793.40, 898,190.10 and 199,447.20

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Solution

The fourth proportional to 598,793.40, 898,190.10 and 199,447.20 is: 299,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,793.40 : 898,190.10 = 199,447.20 : x
  2. Step 2: Convert to fraction form
    598,793.40/898,190.10 = 199,447.20/x
  3. Step 3: Cross multiply
    598,793.40x = 898,190.10 × 199,447.20
  4. Step 4: Simplify right side
    598,793.40x = 179,141,500,512.72
  5. Step 5: Solve for x
    x = 179,141,500,512.72/598,793.40
  6. Step 6: Final answer
    x = 299,170.80

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Double scale
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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.