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Finding the Third Proportional to 324,921 and 502,132.50

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Solution

The third proportional to 324,921 and 502,132.50 is: 775,994.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,921 : 502,132.50 = 502,132.50 : x
  2. Step 2: Convert to fraction form
    324,921/502,132.50 = 502,132.50/x
  3. Step 3: Cross multiply
    324,921x = 502,132.50 × 502,132.50
  4. Step 4: Simplify right side
    324,921x = 252,137,047,556.25
  5. Step 5: Solve for x
    x = 252,137,047,556.25/324,921
  6. Step 6: Final answer
    x = 775,994.93

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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.