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Finding the Third Proportional to 479,621.25 and 692,914.50

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Solution

The third proportional to 479,621.25 and 692,914.50 is: 1,001,061.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,621.25 : 692,914.50 = 692,914.50 : x
  2. Step 2: Convert to fraction form
    479,621.25/692,914.50 = 692,914.50/x
  3. Step 3: Cross multiply
    479,621.25x = 692,914.50 × 692,914.50
  4. Step 4: Simplify right side
    479,621.25x = 480,130,504,310.25
  5. Step 5: Solve for x
    x = 480,130,504,310.25/479,621.25
  6. Step 6: Final answer
    x = 1,001,061.78

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.