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Finding the Fourth Proportional to 552,199.20, 828,736.20 and 215,401.20

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Solution

The fourth proportional to 552,199.20, 828,736.20 and 215,401.20 is: 323,272.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,199.20 : 828,736.20 = 215,401.20 : x
  2. Step 2: Convert to fraction form
    552,199.20/828,736.20 = 215,401.20/x
  3. Step 3: Cross multiply
    552,199.20x = 828,736.20 × 215,401.20
  4. Step 4: Simplify right side
    552,199.20x = 178,510,771,963.44
  5. Step 5: Solve for x
    x = 178,510,771,963.44/552,199.20
  6. Step 6: Final answer
    x = 323,272.42

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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.