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Finding the Third Proportional to 330,225 and 510,220.50

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Solution

The third proportional to 330,225 and 510,220.50 is: 788,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,225 : 510,220.50 = 510,220.50 : x
  2. Step 2: Convert to fraction form
    330,225/510,220.50 = 510,220.50/x
  3. Step 3: Cross multiply
    330,225x = 510,220.50 × 510,220.50
  4. Step 4: Simplify right side
    330,225x = 260,324,958,620.25
  5. Step 5: Solve for x
    x = 260,324,958,620.25/330,225
  6. Step 6: Final answer
    x = 788,326.02

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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.