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Finding the Fourth Proportional to 1,608.78, 2,413.65 and 1,062.06

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Solution

The fourth proportional to 1,608.78, 2,413.65 and 1,062.06 is: 1,593.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.78 : 2,413.65 = 1,062.06 : x
  2. Step 2: Convert to fraction form
    1,608.78/2,413.65 = 1,062.06/x
  3. Step 3: Cross multiply
    1,608.78x = 2,413.65 × 1,062.06
  4. Step 4: Simplify right side
    1,608.78x = 2,563,441.12
  5. Step 5: Solve for x
    x = 2,563,441.12/1,608.78
  6. Step 6: Final answer
    x = 1,593.41

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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.