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Finding the Third Proportional to 212,994.25 and 455,914.50

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Solution

The third proportional to 212,994.25 and 455,914.50 is: 975,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,994.25 : 455,914.50 = 455,914.50 : x
  2. Step 2: Convert to fraction form
    212,994.25/455,914.50 = 455,914.50/x
  3. Step 3: Cross multiply
    212,994.25x = 455,914.50 × 455,914.50
  4. Step 4: Simplify right side
    212,994.25x = 207,858,031,310.25
  5. Step 5: Solve for x
    x = 207,858,031,310.25/212,994.25
  6. Step 6: Final answer
    x = 975,885.65

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.