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Finding the Third Proportional to 825,690 and 1,276,108.50

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Solution

The third proportional to 825,690 and 1,276,108.50 is: 1,972,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,690 : 1,276,108.50 = 1,276,108.50 : x
  2. Step 2: Convert to fraction form
    825,690/1,276,108.50 = 1,276,108.50/x
  3. Step 3: Cross multiply
    825,690x = 1,276,108.50 × 1,276,108.50
  4. Step 4: Simplify right side
    825,690x = 1,628,452,903,772.25
  5. Step 5: Solve for x
    x = 1,628,452,903,772.25/825,690
  6. Step 6: Final answer
    x = 1,972,232.80

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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.