Home / 681,839.33-1,022,758.95-647,744.91

Finding the Fourth Proportional to 681,839.33, 1,022,758.95 and 647,744.91

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Solution

The fourth proportional to 681,839.33, 1,022,758.95 and 647,744.91 is: 971,617.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,839.33 : 1,022,758.95 = 647,744.91 : x
  2. Step 2: Convert to fraction form
    681,839.33/1,022,758.95 = 647,744.91/x
  3. Step 3: Cross multiply
    681,839.33x = 1,022,758.95 × 647,744.91
  4. Step 4: Simplify right side
    681,839.33x = 662,486,905,489.65
  5. Step 5: Solve for x
    x = 662,486,905,489.65/681,839.33
  6. Step 6: Final answer
    x = 971,617.33

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1.5x scale

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.