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Finding the Fourth Proportional to 502,794.63, 693,856.61 and 276,440.13

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Solution

The fourth proportional to 502,794.63, 693,856.61 and 276,440.13 is: 381,487.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,794.63 : 693,856.61 = 276,440.13 : x
  2. Step 2: Convert to fraction form
    502,794.63/693,856.61 = 276,440.13/x
  3. Step 3: Cross multiply
    502,794.63x = 693,856.61 × 276,440.13
  4. Step 4: Simplify right side
    502,794.63x = 191,809,810,087.56
  5. Step 5: Solve for x
    x = 191,809,810,087.56/502,794.63
  6. Step 6: Final answer
    x = 381,487.39

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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.