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Finding the Fourth Proportional to 619,137.21, 853,252.41 and 482,955.42

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Solution

The fourth proportional to 619,137.21, 853,252.41 and 482,955.42 is: 665,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,137.21 : 853,252.41 = 482,955.42 : x
  2. Step 2: Convert to fraction form
    619,137.21/853,252.41 = 482,955.42/x
  3. Step 3: Cross multiply
    619,137.21x = 853,252.41 × 482,955.42
  4. Step 4: Simplify right side
    619,137.21x = 412,082,876,037.56
  5. Step 5: Solve for x
    x = 412,082,876,037.56/619,137.21
  6. Step 6: Final answer
    x = 665,576.01

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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.