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Finding the Fourth Proportional to 1,941.10, 2,912.42 and 708.59

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Solution

The fourth proportional to 1,941.10, 2,912.42 and 708.59 is: 1,063.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.10 : 2,912.42 = 708.59 : x
  2. Step 2: Convert to fraction form
    1,941.10/2,912.42 = 708.59/x
  3. Step 3: Cross multiply
    1,941.10x = 2,912.42 × 708.59
  4. Step 4: Simplify right side
    1,941.10x = 2,063,711.69
  5. Step 5: Solve for x
    x = 2,063,711.69/1,941.10
  6. Step 6: Final answer
    x = 1,063.17

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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.