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Finding the Fourth Proportional to 1,236,699.70, 1,855,049.55 and 1,026,747.70

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Solution

The fourth proportional to 1,236,699.70, 1,855,049.55 and 1,026,747.70 is: 1,540,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,699.70 : 1,855,049.55 = 1,026,747.70 : x
  2. Step 2: Convert to fraction form
    1,236,699.70/1,855,049.55 = 1,026,747.70/x
  3. Step 3: Cross multiply
    1,236,699.70x = 1,855,049.55 × 1,026,747.70
  4. Step 4: Simplify right side
    1,236,699.70x = 1,904,667,858,848.54
  5. Step 5: Solve for x
    x = 1,904,667,858,848.54/1,236,699.70
  6. Step 6: Final answer
    x = 1,540,121.55

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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.