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Finding the Fourth Proportional to 2,240.76, 3,361.14 and 942.22

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Solution

The fourth proportional to 2,240.76, 3,361.14 and 942.22 is: 1,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.76 : 3,361.14 = 942.22 : x
  2. Step 2: Convert to fraction form
    2,240.76/3,361.14 = 942.22/x
  3. Step 3: Cross multiply
    2,240.76x = 3,361.14 × 942.22
  4. Step 4: Simplify right side
    2,240.76x = 3,166,933.33
  5. Step 5: Solve for x
    x = 3,166,933.33/2,240.76
  6. Step 6: Final answer
    x = 1,413.33

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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.