Home / 691,321.70-1,036,982.55-192,685.70

Finding the Fourth Proportional to 691,321.70, 1,036,982.55 and 192,685.70

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Solution

The fourth proportional to 691,321.70, 1,036,982.55 and 192,685.70 is: 289,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,321.70 : 1,036,982.55 = 192,685.70 : x
  2. Step 2: Convert to fraction form
    691,321.70/1,036,982.55 = 192,685.70/x
  3. Step 3: Cross multiply
    691,321.70x = 1,036,982.55 × 192,685.70
  4. Step 4: Simplify right side
    691,321.70x = 199,811,708,534.54
  5. Step 5: Solve for x
    x = 199,811,708,534.54/691,321.70
  6. Step 6: Final answer
    x = 289,028.55

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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.