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Finding the Third Proportional to 490,963.50 and 761,983.50

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Solution

The third proportional to 490,963.50 and 761,983.50 is: 1,182,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,963.50 : 761,983.50 = 761,983.50 : x
  2. Step 2: Convert to fraction form
    490,963.50/761,983.50 = 761,983.50/x
  3. Step 3: Cross multiply
    490,963.50x = 761,983.50 × 761,983.50
  4. Step 4: Simplify right side
    490,963.50x = 580,618,854,272.25
  5. Step 5: Solve for x
    x = 580,618,854,272.25/490,963.50
  6. Step 6: Final answer
    x = 1,182,611.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.