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Finding the Fourth Proportional to 379,299.49, 523,443.58 and 226,426.44

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Solution

The fourth proportional to 379,299.49, 523,443.58 and 226,426.44 is: 312,474.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,299.49 : 523,443.58 = 226,426.44 : x
  2. Step 2: Convert to fraction form
    379,299.49/523,443.58 = 226,426.44/x
  3. Step 3: Cross multiply
    379,299.49x = 523,443.58 × 226,426.44
  4. Step 4: Simplify right side
    379,299.49x = 118,521,466,360.26
  5. Step 5: Solve for x
    x = 118,521,466,360.26/379,299.49
  6. Step 6: Final answer
    x = 312,474.63

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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.