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Finding the Third Proportional to 469 and 755.50

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Solution

The third proportional to 469 and 755.50 is: 1,217.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    469 : 755.50 = 755.50 : x
  2. Step 2: Convert to fraction form
    469/755.50 = 755.50/x
  3. Step 3: Cross multiply
    469x = 755.50 × 755.50
  4. Step 4: Simplify right side
    469x = 570,780.25
  5. Step 5: Solve for x
    x = 570,780.25/469
  6. Step 6: Final answer
    x = 1,217.02

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.