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Finding the Fourth Proportional to 667,592.44, 921,314.46 and 381,204.52

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Solution

The fourth proportional to 667,592.44, 921,314.46 and 381,204.52 is: 526,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,592.44 : 921,314.46 = 381,204.52 : x
  2. Step 2: Convert to fraction form
    667,592.44/921,314.46 = 381,204.52/x
  3. Step 3: Cross multiply
    667,592.44x = 921,314.46 × 381,204.52
  4. Step 4: Simplify right side
    667,592.44x = 351,209,236,493.36
  5. Step 5: Solve for x
    x = 351,209,236,493.36/667,592.44
  6. Step 6: Final answer
    x = 526,083.30

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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.