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Finding the Fourth Proportional to 1,755.22, 2,629.44 and 932.38

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Solution

The fourth proportional to 1,755.22, 2,629.44 and 932.38 is: 1,396.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.22 : 2,629.44 = 932.38 : x
  2. Step 2: Convert to fraction form
    1,755.22/2,629.44 = 932.38/x
  3. Step 3: Cross multiply
    1,755.22x = 2,629.44 × 932.38
  4. Step 4: Simplify right side
    1,755.22x = 2,451,637.27
  5. Step 5: Solve for x
    x = 2,451,637.27/1,755.22
  6. Step 6: Final answer
    x = 1,396.77

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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.