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Finding the Fourth Proportional to 301.41, 416.39 and 203.60

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Solution

The fourth proportional to 301.41, 416.39 and 203.60 is: 281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.41 : 416.39 = 203.60 : x
  2. Step 2: Convert to fraction form
    301.41/416.39 = 203.60/x
  3. Step 3: Cross multiply
    301.41x = 416.39 × 203.60
  4. Step 4: Simplify right side
    301.41x = 84,773.90
  5. Step 5: Solve for x
    x = 84,773.90/301.41
  6. Step 6: Final answer
    x = 281.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.