Home / 853,769.75-1,278,359.64-650,396.97

Finding the Fourth Proportional to 853,769.75, 1,278,359.64 and 650,396.97

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Solution

The fourth proportional to 853,769.75, 1,278,359.64 and 650,396.97 is: 973,847.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,769.75 : 1,278,359.64 = 650,396.97 : x
  2. Step 2: Convert to fraction form
    853,769.75/1,278,359.64 = 650,396.97/x
  3. Step 3: Cross multiply
    853,769.75x = 1,278,359.64 × 650,396.97
  4. Step 4: Simplify right side
    853,769.75x = 831,441,236,426.29
  5. Step 5: Solve for x
    x = 831,441,236,426.29/853,769.75
  6. Step 6: Final answer
    x = 973,847.15

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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.