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Finding the Fourth Proportional to 1,120.76, 1,679.02 and 632.33

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Solution

The fourth proportional to 1,120.76, 1,679.02 and 632.33 is: 947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120.76 : 1,679.02 = 632.33 : x
  2. Step 2: Convert to fraction form
    1,120.76/1,679.02 = 632.33/x
  3. Step 3: Cross multiply
    1,120.76x = 1,679.02 × 632.33
  4. Step 4: Simplify right side
    1,120.76x = 1,061,694.72
  5. Step 5: Solve for x
    x = 1,061,694.72/1,120.76
  6. Step 6: Final answer
    x = 947.30

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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.