Home / 866,387.20-1,299,580.80-656,435.20

Finding the Fourth Proportional to 866,387.20, 1,299,580.80 and 656,435.20

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Solution

The fourth proportional to 866,387.20, 1,299,580.80 and 656,435.20 is: 984,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,387.20 : 1,299,580.80 = 656,435.20 : x
  2. Step 2: Convert to fraction form
    866,387.20/1,299,580.80 = 656,435.20/x
  3. Step 3: Cross multiply
    866,387.20x = 1,299,580.80 × 656,435.20
  4. Step 4: Simplify right side
    866,387.20x = 853,090,582,364.16
  5. Step 5: Solve for x
    x = 853,090,582,364.16/866,387.20
  6. Step 6: Final answer
    x = 984,652.80

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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.