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Finding the Fourth Proportional to 1,068.71, 1,474.14 and 736.56

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Solution

The fourth proportional to 1,068.71, 1,474.14 and 736.56 is: 1,015.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.71 : 1,474.14 = 736.56 : x
  2. Step 2: Convert to fraction form
    1,068.71/1,474.14 = 736.56/x
  3. Step 3: Cross multiply
    1,068.71x = 1,474.14 × 736.56
  4. Step 4: Simplify right side
    1,068.71x = 1,085,792.56
  5. Step 5: Solve for x
    x = 1,085,792.56/1,068.71
  6. Step 6: Final answer
    x = 1,015.99

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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.