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Finding the Fourth Proportional to 1,413.60, 1,944.24 and 1,344.48

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Solution

The fourth proportional to 1,413.60, 1,944.24 and 1,344.48 is: 1,849.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.60 : 1,944.24 = 1,344.48 : x
  2. Step 2: Convert to fraction form
    1,413.60/1,944.24 = 1,344.48/x
  3. Step 3: Cross multiply
    1,413.60x = 1,944.24 × 1,344.48
  4. Step 4: Simplify right side
    1,413.60x = 2,613,991.80
  5. Step 5: Solve for x
    x = 2,613,991.80/1,413.60
  6. Step 6: Final answer
    x = 1,849.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.