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Finding the Fourth Proportional to 675.53, 1,008.94 and 552.41

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Solution

The fourth proportional to 675.53, 1,008.94 and 552.41 is: 825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.53 : 1,008.94 = 552.41 : x
  2. Step 2: Convert to fraction form
    675.53/1,008.94 = 552.41/x
  3. Step 3: Cross multiply
    675.53x = 1,008.94 × 552.41
  4. Step 4: Simplify right side
    675.53x = 557,348.55
  5. Step 5: Solve for x
    x = 557,348.55/675.53
  6. Step 6: Final answer
    x = 825.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.