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Finding the Fourth Proportional to 483,791.38, 725,840.16 and 217,575.16

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Solution

The fourth proportional to 483,791.38, 725,840.16 and 217,575.16 is: 326,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,791.38 : 725,840.16 = 217,575.16 : x
  2. Step 2: Convert to fraction form
    483,791.38/725,840.16 = 217,575.16/x
  3. Step 3: Cross multiply
    483,791.38x = 725,840.16 × 217,575.16
  4. Step 4: Simplify right side
    483,791.38x = 157,924,788,946.43
  5. Step 5: Solve for x
    x = 157,924,788,946.43/483,791.38
  6. Step 6: Final answer
    x = 326,431.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.