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Finding the Fourth Proportional to 482,690.52, 666,112.92 and 267,865.16

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Solution

The fourth proportional to 482,690.52, 666,112.92 and 267,865.16 is: 369,653.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,690.52 : 666,112.92 = 267,865.16 : x
  2. Step 2: Convert to fraction form
    482,690.52/666,112.92 = 267,865.16/x
  3. Step 3: Cross multiply
    482,690.52x = 666,112.92 × 267,865.16
  4. Step 4: Simplify right side
    482,690.52x = 178,428,442,938.99
  5. Step 5: Solve for x
    x = 178,428,442,938.99/482,690.52
  6. Step 6: Final answer
    x = 369,653.92

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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.