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Finding the Fourth Proportional to 941.85, 1,413.36 and 531.27

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Solution

The fourth proportional to 941.85, 1,413.36 and 531.27 is: 797.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.85 : 1,413.36 = 531.27 : x
  2. Step 2: Convert to fraction form
    941.85/1,413.36 = 531.27/x
  3. Step 3: Cross multiply
    941.85x = 1,413.36 × 531.27
  4. Step 4: Simplify right side
    941.85x = 750,875.77
  5. Step 5: Solve for x
    x = 750,875.77/941.85
  6. Step 6: Final answer
    x = 797.23

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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.