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Finding the Third Proportional to 491 and 795.50

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Solution

The third proportional to 491 and 795.50 is: 1,288.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    491 : 795.50 = 795.50 : x
  2. Step 2: Convert to fraction form
    491/795.50 = 795.50/x
  3. Step 3: Cross multiply
    491x = 795.50 × 795.50
  4. Step 4: Simplify right side
    491x = 632,820.25
  5. Step 5: Solve for x
    x = 632,820.25/491
  6. Step 6: Final answer
    x = 1,288.84

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.