Home / 981,331.80-1,471,220.10-538,099.80

Finding the Fourth Proportional to 981,331.80, 1,471,220.10 and 538,099.80

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Solution

The fourth proportional to 981,331.80, 1,471,220.10 and 538,099.80 is: 806,723.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,331.80 : 1,471,220.10 = 538,099.80 : x
  2. Step 2: Convert to fraction form
    981,331.80/1,471,220.10 = 538,099.80/x
  3. Step 3: Cross multiply
    981,331.80x = 1,471,220.10 × 538,099.80
  4. Step 4: Simplify right side
    981,331.80x = 791,663,241,565.98
  5. Step 5: Solve for x
    x = 791,663,241,565.98/981,331.80
  6. Step 6: Final answer
    x = 806,723.31

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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.