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Finding the Third Proportional to 464.75 and 661.50

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Solution

The third proportional to 464.75 and 661.50 is: 941.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.75 : 661.50 = 661.50 : x
  2. Step 2: Convert to fraction form
    464.75/661.50 = 661.50/x
  3. Step 3: Cross multiply
    464.75x = 661.50 × 661.50
  4. Step 4: Simplify right side
    464.75x = 437,582.25
  5. Step 5: Solve for x
    x = 437,582.25/464.75
  6. Step 6: Final answer
    x = 941.54

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.