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Finding the Fourth Proportional to 1,268.14, 1,750.17 and 744.10

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Solution

The fourth proportional to 1,268.14, 1,750.17 and 744.10 is: 1,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268.14 : 1,750.17 = 744.10 : x
  2. Step 2: Convert to fraction form
    1,268.14/1,750.17 = 744.10/x
  3. Step 3: Cross multiply
    1,268.14x = 1,750.17 × 744.10
  4. Step 4: Simplify right side
    1,268.14x = 1,302,301.50
  5. Step 5: Solve for x
    x = 1,302,301.50/1,268.14
  6. Step 6: Final answer
    x = 1,026.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.