Home / 1,261,918.85-1,741,439.03-688,959.03

Finding the Fourth Proportional to 1,261,918.85, 1,741,439.03 and 688,959.03

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Solution

The fourth proportional to 1,261,918.85, 1,741,439.03 and 688,959.03 is: 950,758.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,918.85 : 1,741,439.03 = 688,959.03 : x
  2. Step 2: Convert to fraction form
    1,261,918.85/1,741,439.03 = 688,959.03/x
  3. Step 3: Cross multiply
    1,261,918.85x = 1,741,439.03 × 688,959.03
  4. Step 4: Simplify right side
    1,261,918.85x = 1,199,780,141,468.15
  5. Step 5: Solve for x
    x = 1,199,780,141,468.15/1,261,918.85
  6. Step 6: Final answer
    x = 950,758.55

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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.