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Finding the Fourth Proportional to 942.94, 1,413.72 and 737.96

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Solution

The fourth proportional to 942.94, 1,413.72 and 737.96 is: 1,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.94 : 1,413.72 = 737.96 : x
  2. Step 2: Convert to fraction form
    942.94/1,413.72 = 737.96/x
  3. Step 3: Cross multiply
    942.94x = 1,413.72 × 737.96
  4. Step 4: Simplify right side
    942.94x = 1,043,268.81
  5. Step 5: Solve for x
    x = 1,043,268.81/942.94
  6. Step 6: Final answer
    x = 1,106.40

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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.