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Finding the Fourth Proportional to 3,280,446.20, 4,920,669.30 and 3,280,446.20

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Solution

The fourth proportional to 3,280,446.20, 4,920,669.30 and 3,280,446.20 is: 4,920,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,446.20 : 4,920,669.30 = 3,280,446.20 : x
  2. Step 2: Convert to fraction form
    3,280,446.20/4,920,669.30 = 3,280,446.20/x
  3. Step 3: Cross multiply
    3,280,446.20x = 4,920,669.30 × 3,280,446.20
  4. Step 4: Simplify right side
    3,280,446.20x = 16,141,990,906,641.66
  5. Step 5: Solve for x
    x = 16,141,990,906,641.66/3,280,446.20
  6. Step 6: Final answer
    x = 4,920,669.30

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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.