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Finding the Fourth Proportional to 1,334.15, 1,841.05 and 744.57

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Solution

The fourth proportional to 1,334.15, 1,841.05 and 744.57 is: 1,027.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.15 : 1,841.05 = 744.57 : x
  2. Step 2: Convert to fraction form
    1,334.15/1,841.05 = 744.57/x
  3. Step 3: Cross multiply
    1,334.15x = 1,841.05 × 744.57
  4. Step 4: Simplify right side
    1,334.15x = 1,370,790.60
  5. Step 5: Solve for x
    x = 1,370,790.60/1,334.15
  6. Step 6: Final answer
    x = 1,027.46

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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.