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Finding the Fourth Proportional to 452.88, 624.96 and 266.40

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Solution

The fourth proportional to 452.88, 624.96 and 266.40 is: 367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.88 : 624.96 = 266.40 : x
  2. Step 2: Convert to fraction form
    452.88/624.96 = 266.40/x
  3. Step 3: Cross multiply
    452.88x = 624.96 × 266.40
  4. Step 4: Simplify right side
    452.88x = 166,489.34
  5. Step 5: Solve for x
    x = 166,489.34/452.88
  6. Step 6: Final answer
    x = 367.62

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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.