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Finding the Fourth Proportional to 462,479.76, 638,324.96 and 281,153.25

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Solution

The fourth proportional to 462,479.76, 638,324.96 and 281,153.25 is: 388,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,479.76 : 638,324.96 = 281,153.25 : x
  2. Step 2: Convert to fraction form
    462,479.76/638,324.96 = 281,153.25/x
  3. Step 3: Cross multiply
    462,479.76x = 638,324.96 × 281,153.25
  4. Step 4: Simplify right side
    462,479.76x = 179,467,135,654.35
  5. Step 5: Solve for x
    x = 179,467,135,654.35/462,479.76
  6. Step 6: Final answer
    x = 388,054.03

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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.