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Finding the Fourth Proportional to 1,334.24, 1,841.22 and 744.68

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Solution

The fourth proportional to 1,334.24, 1,841.22 and 744.68 is: 1,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.24 : 1,841.22 = 744.68 : x
  2. Step 2: Convert to fraction form
    1,334.24/1,841.22 = 744.68/x
  3. Step 3: Cross multiply
    1,334.24x = 1,841.22 × 744.68
  4. Step 4: Simplify right side
    1,334.24x = 1,371,119.71
  5. Step 5: Solve for x
    x = 1,371,119.71/1,334.24
  6. Step 6: Final answer
    x = 1,027.64

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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.