Home / 866,409.20-1,299,613.80-656,457.20

Finding the Fourth Proportional to 866,409.20, 1,299,613.80 and 656,457.20

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Solution

The fourth proportional to 866,409.20, 1,299,613.80 and 656,457.20 is: 984,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,409.20 : 1,299,613.80 = 656,457.20 : x
  2. Step 2: Convert to fraction form
    866,409.20/1,299,613.80 = 656,457.20/x
  3. Step 3: Cross multiply
    866,409.20x = 1,299,613.80 × 656,457.20
  4. Step 4: Simplify right side
    866,409.20x = 853,140,836,229.36
  5. Step 5: Solve for x
    x = 853,140,836,229.36/866,409.20
  6. Step 6: Final answer
    x = 984,685.80

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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.