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Finding the Fourth Proportional to 1,334.37, 1,841.37 and 744.90

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Solution

The fourth proportional to 1,334.37, 1,841.37 and 744.90 is: 1,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.37 : 1,841.37 = 744.90 : x
  2. Step 2: Convert to fraction form
    1,334.37/1,841.37 = 744.90/x
  3. Step 3: Cross multiply
    1,334.37x = 1,841.37 × 744.90
  4. Step 4: Simplify right side
    1,334.37x = 1,371,636.51
  5. Step 5: Solve for x
    x = 1,371,636.51/1,334.37
  6. Step 6: Final answer
    x = 1,027.93

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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.