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Finding the Third Proportional to 453.75 and 801.75

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Solution

The third proportional to 453.75 and 801.75 is: 1,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.75 : 801.75 = 801.75 : x
  2. Step 2: Convert to fraction form
    453.75/801.75 = 801.75/x
  3. Step 3: Cross multiply
    453.75x = 801.75 × 801.75
  4. Step 4: Simplify right side
    453.75x = 642,803.06
  5. Step 5: Solve for x
    x = 642,803.06/453.75
  6. Step 6: Final answer
    x = 1,416.65

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.