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Finding the Fourth Proportional to 482,857.68, 666,312.30 and 267,997.80

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Solution

The fourth proportional to 482,857.68, 666,312.30 and 267,997.80 is: 369,819.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,857.68 : 666,312.30 = 267,997.80 : x
  2. Step 2: Convert to fraction form
    482,857.68/666,312.30 = 267,997.80/x
  3. Step 3: Cross multiply
    482,857.68x = 666,312.30 × 267,997.80
  4. Step 4: Simplify right side
    482,857.68x = 178,570,230,512.94
  5. Step 5: Solve for x
    x = 178,570,230,512.94/482,857.68
  6. Step 6: Final answer
    x = 369,819.59

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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.