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Finding the Fourth Proportional to 2,274.46, 3,413.75 and 959.19

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Solution

The fourth proportional to 2,274.46, 3,413.75 and 959.19 is: 1,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.46 : 3,413.75 = 959.19 : x
  2. Step 2: Convert to fraction form
    2,274.46/3,413.75 = 959.19/x
  3. Step 3: Cross multiply
    2,274.46x = 3,413.75 × 959.19
  4. Step 4: Simplify right side
    2,274.46x = 3,274,434.86
  5. Step 5: Solve for x
    x = 3,274,434.86/2,274.46
  6. Step 6: Final answer
    x = 1,439.65

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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.