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Finding the Fourth Proportional to 1,917,943.14, 2,878,198.83 and 796,013.22

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Solution

The fourth proportional to 1,917,943.14, 2,878,198.83 and 796,013.22 is: 1,194,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,943.14 : 2,878,198.83 = 796,013.22 : x
  2. Step 2: Convert to fraction form
    1,917,943.14/2,878,198.83 = 796,013.22/x
  3. Step 3: Cross multiply
    1,917,943.14x = 2,878,198.83 × 796,013.22
  4. Step 4: Simplify right side
    1,917,943.14x = 2,291,084,318,468.53
  5. Step 5: Solve for x
    x = 2,291,084,318,468.53/1,917,943.14
  6. Step 6: Final answer
    x = 1,194,552.78

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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.