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Finding the Fourth Proportional to 1,335.27, 1,842.75 and 745.86

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Solution

The fourth proportional to 1,335.27, 1,842.75 and 745.86 is: 1,029.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.27 : 1,842.75 = 745.86 : x
  2. Step 2: Convert to fraction form
    1,335.27/1,842.75 = 745.86/x
  3. Step 3: Cross multiply
    1,335.27x = 1,842.75 × 745.86
  4. Step 4: Simplify right side
    1,335.27x = 1,374,433.52
  5. Step 5: Solve for x
    x = 1,374,433.52/1,335.27
  6. Step 6: Final answer
    x = 1,029.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.