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Finding the Third Proportional to 393,562.50 and 869,821.50

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Solution

The third proportional to 393,562.50 and 869,821.50 is: 1,922,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,562.50 : 869,821.50 = 869,821.50 : x
  2. Step 2: Convert to fraction form
    393,562.50/869,821.50 = 869,821.50/x
  3. Step 3: Cross multiply
    393,562.50x = 869,821.50 × 869,821.50
  4. Step 4: Simplify right side
    393,562.50x = 756,589,441,862.25
  5. Step 5: Solve for x
    x = 756,589,441,862.25/393,562.50
  6. Step 6: Final answer
    x = 1,922,412.43

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.