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Finding the Fourth Proportional to 468.72, 702.36 and 306.54

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Solution

The fourth proportional to 468.72, 702.36 and 306.54 is: 459.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.72 : 702.36 = 306.54 : x
  2. Step 2: Convert to fraction form
    468.72/702.36 = 306.54/x
  3. Step 3: Cross multiply
    468.72x = 702.36 × 306.54
  4. Step 4: Simplify right side
    468.72x = 215,301.43
  5. Step 5: Solve for x
    x = 215,301.43/468.72
  6. Step 6: Final answer
    x = 459.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.