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Finding the Fourth Proportional to 482,850.40, 666,364.69 and 267,990.48

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Solution

The fourth proportional to 482,850.40, 666,364.69 and 267,990.48 is: 369,844.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,850.40 : 666,364.69 = 267,990.48 : x
  2. Step 2: Convert to fraction form
    482,850.40/666,364.69 = 267,990.48/x
  3. Step 3: Cross multiply
    482,850.40x = 666,364.69 × 267,990.48
  4. Step 4: Simplify right side
    482,850.40x = 178,579,389,796.33
  5. Step 5: Solve for x
    x = 178,579,389,796.33/482,850.40
  6. Step 6: Final answer
    x = 369,844.14

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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.