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Finding the Fourth Proportional to 552,423.20, 829,072.20 and 215,625.20

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Solution

The fourth proportional to 552,423.20, 829,072.20 and 215,625.20 is: 323,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,423.20 : 829,072.20 = 215,625.20 : x
  2. Step 2: Convert to fraction form
    552,423.20/829,072.20 = 215,625.20/x
  3. Step 3: Cross multiply
    552,423.20x = 829,072.20 × 215,625.20
  4. Step 4: Simplify right side
    552,423.20x = 178,768,858,939.44
  5. Step 5: Solve for x
    x = 178,768,858,939.44/552,423.20
  6. Step 6: Final answer
    x = 323,608.53

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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.