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Finding the Fourth Proportional to 943.28, 1,413.66 and 532.26

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Solution

The fourth proportional to 943.28, 1,413.66 and 532.26 is: 797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.28 : 1,413.66 = 532.26 : x
  2. Step 2: Convert to fraction form
    943.28/1,413.66 = 532.26/x
  3. Step 3: Cross multiply
    943.28x = 1,413.66 × 532.26
  4. Step 4: Simplify right side
    943.28x = 752,434.67
  5. Step 5: Solve for x
    x = 752,434.67/943.28
  6. Step 6: Final answer
    x = 797.68

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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.