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Finding the Fourth Proportional to 482,775.78, 666,253.30 and 267,917.62

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Solution

The fourth proportional to 482,775.78, 666,253.30 and 267,917.62 is: 369,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,775.78 : 666,253.30 = 267,917.62 : x
  2. Step 2: Convert to fraction form
    482,775.78/666,253.30 = 267,917.62/x
  3. Step 3: Cross multiply
    482,775.78x = 666,253.30 × 267,917.62
  4. Step 4: Simplify right side
    482,775.78x = 178,500,998,453.15
  5. Step 5: Solve for x
    x = 178,500,998,453.15/482,775.78
  6. Step 6: Final answer
    x = 369,738.93

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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.