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Finding the Fourth Proportional to 482,091, 665,215.74 and 267,231

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Solution

The fourth proportional to 482,091, 665,215.74 and 267,231 is: 368,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,091 : 665,215.74 = 267,231 : x
  2. Step 2: Convert to fraction form
    482,091/665,215.74 = 267,231/x
  3. Step 3: Cross multiply
    482,091x = 665,215.74 × 267,231
  4. Step 4: Simplify right side
    482,091x = 177,766,267,415.94
  5. Step 5: Solve for x
    x = 177,766,267,415.94/482,091
  6. Step 6: Final answer
    x = 368,740.07

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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.