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Finding the Fourth Proportional to 1,407,917.82, 1,942,964.85 and 796,162.08

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Solution

The fourth proportional to 1,407,917.82, 1,942,964.85 and 796,162.08 is: 1,098,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,917.82 : 1,942,964.85 = 796,162.08 : x
  2. Step 2: Convert to fraction form
    1,407,917.82/1,942,964.85 = 796,162.08/x
  3. Step 3: Cross multiply
    1,407,917.82x = 1,942,964.85 × 796,162.08
  4. Step 4: Simplify right side
    1,407,917.82x = 1,546,914,936,342.89
  5. Step 5: Solve for x
    x = 1,546,914,936,342.89/1,407,917.82
  6. Step 6: Final answer
    x = 1,098,725.31

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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.