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Finding the Fourth Proportional to 329,488.56, 494,235.47 and 215,732.26

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Solution

The fourth proportional to 329,488.56, 494,235.47 and 215,732.26 is: 323,600.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,488.56 : 494,235.47 = 215,732.26 : x
  2. Step 2: Convert to fraction form
    329,488.56/494,235.47 = 215,732.26/x
  3. Step 3: Cross multiply
    329,488.56x = 494,235.47 × 215,732.26
  4. Step 4: Simplify right side
    329,488.56x = 106,622,536,072.39
  5. Step 5: Solve for x
    x = 106,622,536,072.39/329,488.56
  6. Step 6: Final answer
    x = 323,600.12

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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.