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Finding the Fourth Proportional to 503,039.88, 694,181.16 and 276,685.56

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Solution

The fourth proportional to 503,039.88, 694,181.16 and 276,685.56 is: 381,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,039.88 : 694,181.16 = 276,685.56 : x
  2. Step 2: Convert to fraction form
    503,039.88/694,181.16 = 276,685.56/x
  3. Step 3: Cross multiply
    503,039.88x = 694,181.16 × 276,685.56
  4. Step 4: Simplify right side
    503,039.88x = 192,069,902,996.05
  5. Step 5: Solve for x
    x = 192,069,902,996.05/503,039.88
  6. Step 6: Final answer
    x = 381,818.44

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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.