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Finding the Fourth Proportional to 1,647,795.90, 2,468,929.05 and 804,531.90

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Solution

The fourth proportional to 1,647,795.90, 2,468,929.05 and 804,531.90 is: 1,205,447.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,795.90 : 2,468,929.05 = 804,531.90 : x
  2. Step 2: Convert to fraction form
    1,647,795.90/2,468,929.05 = 804,531.90/x
  3. Step 3: Cross multiply
    1,647,795.90x = 2,468,929.05 × 804,531.90
  4. Step 4: Simplify right side
    1,647,795.90x = 1,986,332,179,561.69
  5. Step 5: Solve for x
    x = 1,986,332,179,561.69/1,647,795.90
  6. Step 6: Final answer
    x = 1,205,447.94

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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.