Home / 866,487.70-1,299,731.55-656,535.70

Finding the Fourth Proportional to 866,487.70, 1,299,731.55 and 656,535.70

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Solution

The fourth proportional to 866,487.70, 1,299,731.55 and 656,535.70 is: 984,803.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,487.70 : 1,299,731.55 = 656,535.70 : x
  2. Step 2: Convert to fraction form
    866,487.70/1,299,731.55 = 656,535.70/x
  3. Step 3: Cross multiply
    866,487.70x = 1,299,731.55 × 656,535.70
  4. Step 4: Simplify right side
    866,487.70x = 853,320,162,991.34
  5. Step 5: Solve for x
    x = 853,320,162,991.34/866,487.70
  6. Step 6: Final answer
    x = 984,803.55

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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.