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Finding the Fourth Proportional to 2,531.25, 3,796.88 and 682.22

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Solution

The fourth proportional to 2,531.25, 3,796.88 and 682.22 is: 1,023.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.25 : 3,796.88 = 682.22 : x
  2. Step 2: Convert to fraction form
    2,531.25/3,796.88 = 682.22/x
  3. Step 3: Cross multiply
    2,531.25x = 3,796.88 × 682.22
  4. Step 4: Simplify right side
    2,531.25x = 2,590,313.55
  5. Step 5: Solve for x
    x = 2,590,313.55/2,531.25
  6. Step 6: Final answer
    x = 1,023.33

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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.