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Finding the Fourth Proportional to 1,752.97, 2,629.46 and 726.25

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Solution

The fourth proportional to 1,752.97, 2,629.46 and 726.25 is: 1,089.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.97 : 2,629.46 = 726.25 : x
  2. Step 2: Convert to fraction form
    1,752.97/2,629.46 = 726.25/x
  3. Step 3: Cross multiply
    1,752.97x = 2,629.46 × 726.25
  4. Step 4: Simplify right side
    1,752.97x = 1,909,645.33
  5. Step 5: Solve for x
    x = 1,909,645.33/1,752.97
  6. Step 6: Final answer
    x = 1,089.38

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Similar ratio
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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.