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Finding the Fourth Proportional to 2,413.06, 3,619.68 and 681.73

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Solution

The fourth proportional to 2,413.06, 3,619.68 and 681.73 is: 1,022.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,413.06 : 3,619.68 = 681.73 : x
  2. Step 2: Convert to fraction form
    2,413.06/3,619.68 = 681.73/x
  3. Step 3: Cross multiply
    2,413.06x = 3,619.68 × 681.73
  4. Step 4: Simplify right side
    2,413.06x = 2,467,644.45
  5. Step 5: Solve for x
    x = 2,467,644.45/2,413.06
  6. Step 6: Final answer
    x = 1,022.62

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1.5x scale

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.