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Finding the Fourth Proportional to 2,554,919.22, 3,831,724.88 and 757,382.34

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Solution

The fourth proportional to 2,554,919.22, 3,831,724.88 and 757,382.34 is: 1,135,879.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554,919.22 : 3,831,724.88 = 757,382.34 : x
  2. Step 2: Convert to fraction form
    2,554,919.22/3,831,724.88 = 757,382.34/x
  3. Step 3: Cross multiply
    2,554,919.22x = 3,831,724.88 × 757,382.34
  4. Step 4: Simplify right side
    2,554,919.22x = 2,902,080,755,850.62
  5. Step 5: Solve for x
    x = 2,902,080,755,850.62/2,554,919.22
  6. Step 6: Final answer
    x = 1,135,879.65

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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.