Home / 826,251.80-1,239,377.70-542,816.60

Finding the Fourth Proportional to 826,251.80, 1,239,377.70 and 542,816.60

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Solution

The fourth proportional to 826,251.80, 1,239,377.70 and 542,816.60 is: 814,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,251.80 : 1,239,377.70 = 542,816.60 : x
  2. Step 2: Convert to fraction form
    826,251.80/1,239,377.70 = 542,816.60/x
  3. Step 3: Cross multiply
    826,251.80x = 1,239,377.70 × 542,816.60
  4. Step 4: Simplify right side
    826,251.80x = 672,754,789,229.82
  5. Step 5: Solve for x
    x = 672,754,789,229.82/826,251.80
  6. Step 6: Final answer
    x = 814,224.90

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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.