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Finding the Fourth Proportional to 1,160.62, 1,736.82 and 851.74

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Solution

The fourth proportional to 1,160.62, 1,736.82 and 851.74 is: 1,274.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.62 : 1,736.82 = 851.74 : x
  2. Step 2: Convert to fraction form
    1,160.62/1,736.82 = 851.74/x
  3. Step 3: Cross multiply
    1,160.62x = 1,736.82 × 851.74
  4. Step 4: Simplify right side
    1,160.62x = 1,479,319.07
  5. Step 5: Solve for x
    x = 1,479,319.07/1,160.62
  6. Step 6: Final answer
    x = 1,274.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.