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Finding the Fourth Proportional to 937.34, 1,404.44 and 773.31

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Solution

The fourth proportional to 937.34, 1,404.44 and 773.31 is: 1,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.34 : 1,404.44 = 773.31 : x
  2. Step 2: Convert to fraction form
    937.34/1,404.44 = 773.31/x
  3. Step 3: Cross multiply
    937.34x = 1,404.44 × 773.31
  4. Step 4: Simplify right side
    937.34x = 1,086,071.80
  5. Step 5: Solve for x
    x = 1,086,071.80/937.34
  6. Step 6: Final answer
    x = 1,158.68

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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.