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Finding the Fourth Proportional to 1,789,361.82, 2,469,387.42 and 1,025,563.14

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Solution

The fourth proportional to 1,789,361.82, 2,469,387.42 and 1,025,563.14 is: 1,415,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,361.82 : 2,469,387.42 = 1,025,563.14 : x
  2. Step 2: Convert to fraction form
    1,789,361.82/2,469,387.42 = 1,025,563.14/x
  3. Step 3: Cross multiply
    1,789,361.82x = 2,469,387.42 × 1,025,563.14
  4. Step 4: Simplify right side
    1,789,361.82x = 2,532,512,716,331.70
  5. Step 5: Solve for x
    x = 2,532,512,716,331.70/1,789,361.82
  6. Step 6: Final answer
    x = 1,415,316.17

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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.