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Finding the Fourth Proportional to 453.53, 679.32 and 404.24

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Solution

The fourth proportional to 453.53, 679.32 and 404.24 is: 605.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.53 : 679.32 = 404.24 : x
  2. Step 2: Convert to fraction form
    453.53/679.32 = 404.24/x
  3. Step 3: Cross multiply
    453.53x = 679.32 × 404.24
  4. Step 4: Simplify right side
    453.53x = 274,604.92
  5. Step 5: Solve for x
    x = 274,604.92/453.53
  6. Step 6: Final answer
    x = 605.49

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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.