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Finding the Fourth Proportional to 379,578.25, 523,817.91 and 207,496.94

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Solution

The fourth proportional to 379,578.25, 523,817.91 and 207,496.94 is: 286,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,578.25 : 523,817.91 = 207,496.94 : x
  2. Step 2: Convert to fraction form
    379,578.25/523,817.91 = 207,496.94/x
  3. Step 3: Cross multiply
    379,578.25x = 523,817.91 × 207,496.94
  4. Step 4: Simplify right side
    379,578.25x = 108,690,612,787.42
  5. Step 5: Solve for x
    x = 108,690,612,787.42/379,578.25
  6. Step 6: Final answer
    x = 286,345.73

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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.