Home / 728,049.40-1,092,074.10-657,190.60

Finding the Fourth Proportional to 728,049.40, 1,092,074.10 and 657,190.60

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Solution

The fourth proportional to 728,049.40, 1,092,074.10 and 657,190.60 is: 985,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,049.40 : 1,092,074.10 = 657,190.60 : x
  2. Step 2: Convert to fraction form
    728,049.40/1,092,074.10 = 657,190.60/x
  3. Step 3: Cross multiply
    728,049.40x = 1,092,074.10 × 657,190.60
  4. Step 4: Simplify right side
    728,049.40x = 717,700,833,023.46
  5. Step 5: Solve for x
    x = 717,700,833,023.46/728,049.40
  6. Step 6: Final answer
    x = 985,785.90

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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.