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Finding the Third Proportional to 338,878.50 and 451,786.50

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Solution

The third proportional to 338,878.50 and 451,786.50 is: 602,313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,878.50 : 451,786.50 = 451,786.50 : x
  2. Step 2: Convert to fraction form
    338,878.50/451,786.50 = 451,786.50/x
  3. Step 3: Cross multiply
    338,878.50x = 451,786.50 × 451,786.50
  4. Step 4: Simplify right side
    338,878.50x = 204,111,041,582.25
  5. Step 5: Solve for x
    x = 204,111,041,582.25/338,878.50
  6. Step 6: Final answer
    x = 602,313.34

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.