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Finding the Fourth Proportional to 3,608,195.91, 4,979,270.72 and 1,954,301.88

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Solution

The fourth proportional to 3,608,195.91, 4,979,270.72 and 1,954,301.88 is: 2,696,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608,195.91 : 4,979,270.72 = 1,954,301.88 : x
  2. Step 2: Convert to fraction form
    3,608,195.91/4,979,270.72 = 1,954,301.88/x
  3. Step 3: Cross multiply
    3,608,195.91x = 4,979,270.72 × 1,954,301.88
  4. Step 4: Simplify right side
    3,608,195.91x = 9,730,998,129,124.95
  5. Step 5: Solve for x
    x = 9,730,998,129,124.95/3,608,195.91
  6. Step 6: Final answer
    x = 2,696,915.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.