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Finding the Fourth Proportional to 502,961.16, 694,072.56 and 276,606.68

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Solution

The fourth proportional to 502,961.16, 694,072.56 and 276,606.68 is: 381,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,961.16 : 694,072.56 = 276,606.68 : x
  2. Step 2: Convert to fraction form
    502,961.16/694,072.56 = 276,606.68/x
  3. Step 3: Cross multiply
    502,961.16x = 694,072.56 × 276,606.68
  4. Step 4: Simplify right side
    502,961.16x = 191,985,106,500.70
  5. Step 5: Solve for x
    x = 191,985,106,500.70/502,961.16
  6. Step 6: Final answer
    x = 381,709.61

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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.