Home / 691,067.70-1,036,601.55-392,132.14

Finding the Fourth Proportional to 691,067.70, 1,036,601.55 and 392,132.14

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Solution

The fourth proportional to 691,067.70, 1,036,601.55 and 392,132.14 is: 588,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,067.70 : 1,036,601.55 = 392,132.14 : x
  2. Step 2: Convert to fraction form
    691,067.70/1,036,601.55 = 392,132.14/x
  3. Step 3: Cross multiply
    691,067.70x = 1,036,601.55 × 392,132.14
  4. Step 4: Simplify right side
    691,067.70x = 406,484,784,128.82
  5. Step 5: Solve for x
    x = 406,484,784,128.82/691,067.70
  6. Step 6: Final answer
    x = 588,198.21

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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.