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Finding the Fourth Proportional to 1,374.25, 2,060.13 and 496.55

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Solution

The fourth proportional to 1,374.25, 2,060.13 and 496.55 is: 744.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.25 : 2,060.13 = 496.55 : x
  2. Step 2: Convert to fraction form
    1,374.25/2,060.13 = 496.55/x
  3. Step 3: Cross multiply
    1,374.25x = 2,060.13 × 496.55
  4. Step 4: Simplify right side
    1,374.25x = 1,022,957.55
  5. Step 5: Solve for x
    x = 1,022,957.55/1,374.25
  6. Step 6: Final answer
    x = 744.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.