Home / 869,559.40-1,198,605.18-685,497.88

Finding the Fourth Proportional to 869,559.40, 1,198,605.18 and 685,497.88

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Solution

The fourth proportional to 869,559.40, 1,198,605.18 and 685,497.88 is: 944,893.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,559.40 : 1,198,605.18 = 685,497.88 : x
  2. Step 2: Convert to fraction form
    869,559.40/1,198,605.18 = 685,497.88/x
  3. Step 3: Cross multiply
    869,559.40x = 1,198,605.18 × 685,497.88
  4. Step 4: Simplify right side
    869,559.40x = 821,641,309,847.02
  5. Step 5: Solve for x
    x = 821,641,309,847.02/869,559.40
  6. Step 6: Final answer
    x = 944,893.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.