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Finding the Third Proportional to 468.75 and 703.50

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Solution

The third proportional to 468.75 and 703.50 is: 1,055.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.75 : 703.50 = 703.50 : x
  2. Step 2: Convert to fraction form
    468.75/703.50 = 703.50/x
  3. Step 3: Cross multiply
    468.75x = 703.50 × 703.50
  4. Step 4: Simplify right side
    468.75x = 494,912.25
  5. Step 5: Solve for x
    x = 494,912.25/468.75
  6. Step 6: Final answer
    x = 1,055.81

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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.