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Finding the Third Proportional to 505,704 and 761,756

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Solution

The third proportional to 505,704 and 761,756 is: 1,147,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,704 : 761,756 = 761,756 : x
  2. Step 2: Convert to fraction form
    505,704/761,756 = 761,756/x
  3. Step 3: Cross multiply
    505,704x = 761,756 × 761,756
  4. Step 4: Simplify right side
    505,704x = 580,272,203,536
  5. Step 5: Solve for x
    x = 580,272,203,536/505,704
  6. Step 6: Final answer
    x = 1,147,454.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.