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Finding the Fourth Proportional to 462,524.45, 638,480.49 and 281,294.60

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Solution

The fourth proportional to 462,524.45, 638,480.49 and 281,294.60 is: 388,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,524.45 : 638,480.49 = 281,294.60 : x
  2. Step 2: Convert to fraction form
    462,524.45/638,480.49 = 281,294.60/x
  3. Step 3: Cross multiply
    462,524.45x = 638,480.49 × 281,294.60
  4. Step 4: Simplify right side
    462,524.45x = 179,601,114,042.35
  5. Step 5: Solve for x
    x = 179,601,114,042.35/462,524.45
  6. Step 6: Final answer
    x = 388,306.21

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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.