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Finding the Fourth Proportional to 1,899,067.48, 2,620,708.76 and 1,039,620.22

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Solution

The fourth proportional to 1,899,067.48, 2,620,708.76 and 1,039,620.22 is: 1,434,673.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,067.48 : 2,620,708.76 = 1,039,620.22 : x
  2. Step 2: Convert to fraction form
    1,899,067.48/2,620,708.76 = 1,039,620.22/x
  3. Step 3: Cross multiply
    1,899,067.48x = 2,620,708.76 × 1,039,620.22
  4. Step 4: Simplify right side
    1,899,067.48x = 2,724,541,817,627.13
  5. Step 5: Solve for x
    x = 2,724,541,817,627.13/1,899,067.48
  6. Step 6: Final answer
    x = 1,434,673.52

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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.