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Finding the Fourth Proportional to 462,940.98, 638,601.30 and 269,326.95

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Solution

The fourth proportional to 462,940.98, 638,601.30 and 269,326.95 is: 371,521.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,940.98 : 638,601.30 = 269,326.95 : x
  2. Step 2: Convert to fraction form
    462,940.98/638,601.30 = 269,326.95/x
  3. Step 3: Cross multiply
    462,940.98x = 638,601.30 × 269,326.95
  4. Step 4: Simplify right side
    462,940.98x = 171,992,540,395.04
  5. Step 5: Solve for x
    x = 171,992,540,395.04/462,940.98
  6. Step 6: Final answer
    x = 371,521.53

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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.