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Finding the Fourth Proportional to 458,793.60, 688,190.40 and 193,073.10

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Solution

The fourth proportional to 458,793.60, 688,190.40 and 193,073.10 is: 289,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,793.60 : 688,190.40 = 193,073.10 : x
  2. Step 2: Convert to fraction form
    458,793.60/688,190.40 = 193,073.10/x
  3. Step 3: Cross multiply
    458,793.60x = 688,190.40 × 193,073.10
  4. Step 4: Simplify right side
    458,793.60x = 132,871,053,918.24
  5. Step 5: Solve for x
    x = 132,871,053,918.24/458,793.60
  6. Step 6: Final answer
    x = 289,609.65

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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.