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Finding the Fourth Proportional to 4,991,479.97, 7,487,648.73 and 1,752,739.31

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Solution

The fourth proportional to 4,991,479.97, 7,487,648.73 and 1,752,739.31 is: 2,629,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991,479.97 : 7,487,648.73 = 1,752,739.31 : x
  2. Step 2: Convert to fraction form
    4,991,479.97/7,487,648.73 = 1,752,739.31/x
  3. Step 3: Cross multiply
    4,991,479.97x = 7,487,648.73 × 1,752,739.31
  4. Step 4: Simplify right side
    4,991,479.97x = 13,123,896,231,104.33
  5. Step 5: Solve for x
    x = 13,123,896,231,104.33/4,991,479.97
  6. Step 6: Final answer
    x = 2,629,259.52

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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.