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Finding the Fourth Proportional to 1,922,649.38, 2,650,843.76 and 1,233,104.07

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Solution

The fourth proportional to 1,922,649.38, 2,650,843.76 and 1,233,104.07 is: 1,700,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922,649.38 : 2,650,843.76 = 1,233,104.07 : x
  2. Step 2: Convert to fraction form
    1,922,649.38/2,650,843.76 = 1,233,104.07/x
  3. Step 3: Cross multiply
    1,922,649.38x = 2,650,843.76 × 1,233,104.07
  4. Step 4: Simplify right side
    1,922,649.38x = 3,268,766,223,224.58
  5. Step 5: Solve for x
    x = 3,268,766,223,224.58/1,922,649.38
  6. Step 6: Final answer
    x = 1,700,136.42

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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.