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Finding the Third Proportional to 1,243,201.50 and 1,869,415.88

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Solution

The third proportional to 1,243,201.50 and 1,869,415.88 is: 2,811,061.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,201.50 : 1,869,415.88 = 1,869,415.88 : x
  2. Step 2: Convert to fraction form
    1,243,201.50/1,869,415.88 = 1,869,415.88/x
  3. Step 3: Cross multiply
    1,243,201.50x = 1,869,415.88 × 1,869,415.88
  4. Step 4: Simplify right side
    1,243,201.50x = 3,494,715,713,702.02
  5. Step 5: Solve for x
    x = 3,494,715,713,702.02/1,243,201.50
  6. Step 6: Final answer
    x = 2,811,061.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.