Home / 1,040,147.90-1,560,221.85-408,736.70

Finding the Fourth Proportional to 1,040,147.90, 1,560,221.85 and 408,736.70

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Solution

The fourth proportional to 1,040,147.90, 1,560,221.85 and 408,736.70 is: 613,105.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,147.90 : 1,560,221.85 = 408,736.70 : x
  2. Step 2: Convert to fraction form
    1,040,147.90/1,560,221.85 = 408,736.70/x
  3. Step 3: Cross multiply
    1,040,147.90x = 1,560,221.85 × 408,736.70
  4. Step 4: Simplify right side
    1,040,147.90x = 637,719,930,236.90
  5. Step 5: Solve for x
    x = 637,719,930,236.90/1,040,147.90
  6. Step 6: Final answer
    x = 613,105.05

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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.