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Finding the Fourth Proportional to 298,850.52, 412,413.88 and 169,789.22

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Solution

The fourth proportional to 298,850.52, 412,413.88 and 169,789.22 is: 234,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,850.52 : 412,413.88 = 169,789.22 : x
  2. Step 2: Convert to fraction form
    298,850.52/412,413.88 = 169,789.22/x
  3. Step 3: Cross multiply
    298,850.52x = 412,413.88 × 169,789.22
  4. Step 4: Simplify right side
    298,850.52x = 70,023,431,063.12
  5. Step 5: Solve for x
    x = 70,023,431,063.12/298,850.52
  6. Step 6: Final answer
    x = 234,309.21

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1.5x scale

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.