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Finding the Fourth Proportional to 503,172.57, 755,108.78 and 325,238.25

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Solution

The fourth proportional to 503,172.57, 755,108.78 and 325,238.25 is: 488,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,172.57 : 755,108.78 = 325,238.25 : x
  2. Step 2: Convert to fraction form
    503,172.57/755,108.78 = 325,238.25/x
  3. Step 3: Cross multiply
    503,172.57x = 755,108.78 × 325,238.25
  4. Step 4: Simplify right side
    503,172.57x = 245,590,256,540.64
  5. Step 5: Solve for x
    x = 245,590,256,540.64/503,172.57
  6. Step 6: Final answer
    x = 488,083.55

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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.