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Finding the Fourth Proportional to 937.36, 1,404.96 and 416.92

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Solution

The fourth proportional to 937.36, 1,404.96 and 416.92 is: 624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.36 : 1,404.96 = 416.92 : x
  2. Step 2: Convert to fraction form
    937.36/1,404.96 = 416.92/x
  3. Step 3: Cross multiply
    937.36x = 1,404.96 × 416.92
  4. Step 4: Simplify right side
    937.36x = 585,755.92
  5. Step 5: Solve for x
    x = 585,755.92/937.36
  6. Step 6: Final answer
    x = 624.90

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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.