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Finding the Fourth Proportional to 942.14, 1,413.13 and 635.96

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Solution

The fourth proportional to 942.14, 1,413.13 and 635.96 is: 953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.14 : 1,413.13 = 635.96 : x
  2. Step 2: Convert to fraction form
    942.14/1,413.13 = 635.96/x
  3. Step 3: Cross multiply
    942.14x = 1,413.13 × 635.96
  4. Step 4: Simplify right side
    942.14x = 898,696.10
  5. Step 5: Solve for x
    x = 898,696.10/942.14
  6. Step 6: Final answer
    x = 953.89

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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.