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Finding the Third Proportional to 784,392.75 and 1,212,063.19

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Solution

The third proportional to 784,392.75 and 1,212,063.19 is: 1,872,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,392.75 : 1,212,063.19 = 1,212,063.19 : x
  2. Step 2: Convert to fraction form
    784,392.75/1,212,063.19 = 1,212,063.19/x
  3. Step 3: Cross multiply
    784,392.75x = 1,212,063.19 × 1,212,063.19
  4. Step 4: Simplify right side
    784,392.75x = 1,469,097,170,492.66
  5. Step 5: Solve for x
    x = 1,469,097,170,492.66/784,392.75
  6. Step 6: Final answer
    x = 1,872,910.18

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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.