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Finding the Fourth Proportional to 3,217,257.92, 4,824,413.56 and 1,920,998.76

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Solution

The fourth proportional to 3,217,257.92, 4,824,413.56 and 1,920,998.76 is: 2,880,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,257.92 : 4,824,413.56 = 1,920,998.76 : x
  2. Step 2: Convert to fraction form
    3,217,257.92/4,824,413.56 = 1,920,998.76/x
  3. Step 3: Cross multiply
    3,217,257.92x = 4,824,413.56 × 1,920,998.76
  4. Step 4: Simplify right side
    3,217,257.92x = 9,267,692,466,487.19
  5. Step 5: Solve for x
    x = 9,267,692,466,487.19/3,217,257.92
  6. Step 6: Final answer
    x = 2,880,618.43

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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.