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Finding the Fourth Proportional to 2,413.94, 3,621.54 and 682.58

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Solution

The fourth proportional to 2,413.94, 3,621.54 and 682.58 is: 1,024.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,413.94 : 3,621.54 = 682.58 : x
  2. Step 2: Convert to fraction form
    2,413.94/3,621.54 = 682.58/x
  3. Step 3: Cross multiply
    2,413.94x = 3,621.54 × 682.58
  4. Step 4: Simplify right side
    2,413.94x = 2,471,990.77
  5. Step 5: Solve for x
    x = 2,471,990.77/2,413.94
  6. Step 6: Final answer
    x = 1,024.05

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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.