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Finding the Fourth Proportional to 442.41, 610.50 and 245.91

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Solution

The fourth proportional to 442.41, 610.50 and 245.91 is: 339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.41 : 610.50 = 245.91 : x
  2. Step 2: Convert to fraction form
    442.41/610.50 = 245.91/x
  3. Step 3: Cross multiply
    442.41x = 610.50 × 245.91
  4. Step 4: Simplify right side
    442.41x = 150,128.06
  5. Step 5: Solve for x
    x = 150,128.06/442.41
  6. Step 6: Final answer
    x = 339.34

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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.