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Finding the Fourth Proportional to 942.57, 1,413.06 and 736.50

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Solution

The fourth proportional to 942.57, 1,413.06 and 736.50 is: 1,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.57 : 1,413.06 = 736.50 : x
  2. Step 2: Convert to fraction form
    942.57/1,413.06 = 736.50/x
  3. Step 3: Cross multiply
    942.57x = 1,413.06 × 736.50
  4. Step 4: Simplify right side
    942.57x = 1,040,718.69
  5. Step 5: Solve for x
    x = 1,040,718.69/942.57
  6. Step 6: Final answer
    x = 1,104.13

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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.