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Finding the Fourth Proportional to 1,969,153.02, 2,717,936.79 and 1,282,535.88

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Solution

The fourth proportional to 1,969,153.02, 2,717,936.79 and 1,282,535.88 is: 1,770,228.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,153.02 : 2,717,936.79 = 1,282,535.88 : x
  2. Step 2: Convert to fraction form
    1,969,153.02/2,717,936.79 = 1,282,535.88/x
  3. Step 3: Cross multiply
    1,969,153.02x = 2,717,936.79 × 1,282,535.88
  4. Step 4: Simplify right side
    1,969,153.02x = 3,485,851,452,747.03
  5. Step 5: Solve for x
    x = 3,485,851,452,747.03/1,969,153.02
  6. Step 6: Final answer
    x = 1,770,228.83

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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.