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Finding the Third Proportional to 784,619 and 1,212,416.50

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Solution

The third proportional to 784,619 and 1,212,416.50 is: 1,873,461.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,619 : 1,212,416.50 = 1,212,416.50 : x
  2. Step 2: Convert to fraction form
    784,619/1,212,416.50 = 1,212,416.50/x
  3. Step 3: Cross multiply
    784,619x = 1,212,416.50 × 1,212,416.50
  4. Step 4: Simplify right side
    784,619x = 1,469,953,769,472.25
  5. Step 5: Solve for x
    x = 1,469,953,769,472.25/784,619
  6. Step 6: Final answer
    x = 1,873,461.86

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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.