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Finding the Fourth Proportional to 8,959,648.40, 13,444,721.40 and 3,280,446.80

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Solution

The fourth proportional to 8,959,648.40, 13,444,721.40 and 3,280,446.80 is: 4,922,591.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959,648.40 : 13,444,721.40 = 3,280,446.80 : x
  2. Step 2: Convert to fraction form
    8,959,648.40/13,444,721.40 = 3,280,446.80/x
  3. Step 3: Cross multiply
    8,959,648.40x = 13,444,721.40 × 3,280,446.80
  4. Step 4: Simplify right side
    8,959,648.40x = 44,104,693,293,521.52
  5. Step 5: Solve for x
    x = 44,104,693,293,521.52/8,959,648.40
  6. Step 6: Final answer
    x = 4,922,591.97

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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.