Home / 827,144.70-1,240,947.45-406,434.30

Finding the Fourth Proportional to 827,144.70, 1,240,947.45 and 406,434.30

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Solution

The fourth proportional to 827,144.70, 1,240,947.45 and 406,434.30 is: 609,764.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,144.70 : 1,240,947.45 = 406,434.30 : x
  2. Step 2: Convert to fraction form
    827,144.70/1,240,947.45 = 406,434.30/x
  3. Step 3: Cross multiply
    827,144.70x = 1,240,947.45 × 406,434.30
  4. Step 4: Simplify right side
    827,144.70x = 504,363,608,177.54
  5. Step 5: Solve for x
    x = 504,363,608,177.54/827,144.70
  6. Step 6: Final answer
    x = 609,764.66

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Double scale
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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.