Home / 728,145.91-1,092,217.90-195,666.97

Finding the Fourth Proportional to 728,145.91, 1,092,217.90 and 195,666.97

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Solution

The fourth proportional to 728,145.91, 1,092,217.90 and 195,666.97 is: 293,500.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,145.91 : 1,092,217.90 = 195,666.97 : x
  2. Step 2: Convert to fraction form
    728,145.91/1,092,217.90 = 195,666.97/x
  3. Step 3: Cross multiply
    728,145.91x = 1,092,217.90 × 195,666.97
  4. Step 4: Simplify right side
    728,145.91x = 213,710,962,645.66
  5. Step 5: Solve for x
    x = 213,710,962,645.66/728,145.91
  6. Step 6: Final answer
    x = 293,500.19

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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.