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Finding the Third Proportional to 250,647.75 and 388,298.25

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Solution

The third proportional to 250,647.75 and 388,298.25 is: 601,543.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,647.75 : 388,298.25 = 388,298.25 : x
  2. Step 2: Convert to fraction form
    250,647.75/388,298.25 = 388,298.25/x
  3. Step 3: Cross multiply
    250,647.75x = 388,298.25 × 388,298.25
  4. Step 4: Simplify right side
    250,647.75x = 150,775,530,953.06
  5. Step 5: Solve for x
    x = 150,775,530,953.06/250,647.75
  6. Step 6: Final answer
    x = 601,543.52

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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.