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Finding the Fourth Proportional to 1,268,751.74, 1,750,899.85 and 695,786.90

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Solution

The fourth proportional to 1,268,751.74, 1,750,899.85 and 695,786.90 is: 960,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,751.74 : 1,750,899.85 = 695,786.90 : x
  2. Step 2: Convert to fraction form
    1,268,751.74/1,750,899.85 = 695,786.90/x
  3. Step 3: Cross multiply
    1,268,751.74x = 1,750,899.85 × 695,786.90
  4. Step 4: Simplify right side
    1,268,751.74x = 1,218,253,168,348.00
  5. Step 5: Solve for x
    x = 1,218,253,168,348.00/1,268,751.74
  6. Step 6: Final answer
    x = 960,198.23

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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.