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Finding the Fourth Proportional to 383,851.80, 529,576.56 and 222,618.24

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Solution

The fourth proportional to 383,851.80, 529,576.56 and 222,618.24 is: 307,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,851.80 : 529,576.56 = 222,618.24 : x
  2. Step 2: Convert to fraction form
    383,851.80/529,576.56 = 222,618.24/x
  3. Step 3: Cross multiply
    383,851.80x = 529,576.56 × 222,618.24
  4. Step 4: Simplify right side
    383,851.80x = 117,893,401,732.45
  5. Step 5: Solve for x
    x = 117,893,401,732.45/383,851.80
  6. Step 6: Final answer
    x = 307,132.60

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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.