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Finding the Fourth Proportional to 2,413.68, 3,620.54 and 682.32

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Solution

The fourth proportional to 2,413.68, 3,620.54 and 682.32 is: 1,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,413.68 : 3,620.54 = 682.32 : x
  2. Step 2: Convert to fraction form
    2,413.68/3,620.54 = 682.32/x
  3. Step 3: Cross multiply
    2,413.68x = 3,620.54 × 682.32
  4. Step 4: Simplify right side
    2,413.68x = 2,470,366.85
  5. Step 5: Solve for x
    x = 2,470,366.85/2,413.68
  6. Step 6: Final answer
    x = 1,023.49

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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.