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Finding the Fourth Proportional to 1,256.07, 1,733.52 and 906.96

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Solution

The fourth proportional to 1,256.07, 1,733.52 and 906.96 is: 1,251.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256.07 : 1,733.52 = 906.96 : x
  2. Step 2: Convert to fraction form
    1,256.07/1,733.52 = 906.96/x
  3. Step 3: Cross multiply
    1,256.07x = 1,733.52 × 906.96
  4. Step 4: Simplify right side
    1,256.07x = 1,572,233.30
  5. Step 5: Solve for x
    x = 1,572,233.30/1,256.07
  6. Step 6: Final answer
    x = 1,251.71

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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.