Home / 728,096.90-1,092,145.35-657,238.10

Finding the Fourth Proportional to 728,096.90, 1,092,145.35 and 657,238.10

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Solution

The fourth proportional to 728,096.90, 1,092,145.35 and 657,238.10 is: 985,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,096.90 : 1,092,145.35 = 657,238.10 : x
  2. Step 2: Convert to fraction form
    728,096.90/1,092,145.35 = 657,238.10/x
  3. Step 3: Cross multiply
    728,096.90x = 1,092,145.35 × 657,238.10
  4. Step 4: Simplify right side
    728,096.90x = 717,799,534,757.84
  5. Step 5: Solve for x
    x = 717,799,534,757.84/728,096.90
  6. Step 6: Final answer
    x = 985,857.15

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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.