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Finding the Fourth Proportional to 468, 702.36 and 251.64

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Solution

The fourth proportional to 468, 702.36 and 251.64 is: 377.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    468 : 702.36 = 251.64 : x
  2. Step 2: Convert to fraction form
    468/702.36 = 251.64/x
  3. Step 3: Cross multiply
    468x = 702.36 × 251.64
  4. Step 4: Simplify right side
    468x = 176,741.87
  5. Step 5: Solve for x
    x = 176,741.87/468
  6. Step 6: Final answer
    x = 377.65

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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.