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Finding the Fourth Proportional to 2,696,940.73, 3,721,891.32 and 1,551,021.97

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Solution

The fourth proportional to 2,696,940.73, 3,721,891.32 and 1,551,021.97 is: 2,140,475.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696,940.73 : 3,721,891.32 = 1,551,021.97 : x
  2. Step 2: Convert to fraction form
    2,696,940.73/3,721,891.32 = 1,551,021.97/x
  3. Step 3: Cross multiply
    2,696,940.73x = 3,721,891.32 × 1,551,021.97
  4. Step 4: Simplify right side
    2,696,940.73x = 5,772,735,207,272.30
  5. Step 5: Solve for x
    x = 5,772,735,207,272.30/2,696,940.73
  6. Step 6: Final answer
    x = 2,140,475.37

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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.