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Finding the Fourth Proportional to 482,640.63, 666,044.17 and 267,780.17

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Solution

The fourth proportional to 482,640.63, 666,044.17 and 267,780.17 is: 369,536.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,640.63 : 666,044.17 = 267,780.17 : x
  2. Step 2: Convert to fraction form
    482,640.63/666,044.17 = 267,780.17/x
  3. Step 3: Cross multiply
    482,640.63x = 666,044.17 × 267,780.17
  4. Step 4: Simplify right side
    482,640.63x = 178,353,422,065.77
  5. Step 5: Solve for x
    x = 178,353,422,065.77/482,640.63
  6. Step 6: Final answer
    x = 369,536.70

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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.