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Finding the Fourth Proportional to 482,940.89, 666,425.09 and 268,064.04

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Solution

The fourth proportional to 482,940.89, 666,425.09 and 268,064.04 is: 369,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,940.89 : 666,425.09 = 268,064.04 : x
  2. Step 2: Convert to fraction form
    482,940.89/666,425.09 = 268,064.04/x
  3. Step 3: Cross multiply
    482,940.89x = 666,425.09 × 268,064.04
  4. Step 4: Simplify right side
    482,940.89x = 178,644,600,642.44
  5. Step 5: Solve for x
    x = 178,644,600,642.44/482,940.89
  6. Step 6: Final answer
    x = 369,909.87

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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.