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Finding the Fourth Proportional to 482,840.82, 666,311.13 and 267,983.46

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Solution

The fourth proportional to 482,840.82, 666,311.13 and 267,983.46 is: 369,812.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,840.82 : 666,311.13 = 267,983.46 : x
  2. Step 2: Convert to fraction form
    482,840.82/666,311.13 = 267,983.46/x
  3. Step 3: Cross multiply
    482,840.82x = 666,311.13 × 267,983.46
  4. Step 4: Simplify right side
    482,840.82x = 178,560,362,053.91
  5. Step 5: Solve for x
    x = 178,560,362,053.91/482,840.82
  6. Step 6: Final answer
    x = 369,812.07

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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.