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Finding the Third Proportional to 302,878.50 and 655,293

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Solution

The third proportional to 302,878.50 and 655,293 is: 1,417,759.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,878.50 : 655,293 = 655,293 : x
  2. Step 2: Convert to fraction form
    302,878.50/655,293 = 655,293/x
  3. Step 3: Cross multiply
    302,878.50x = 655,293 × 655,293
  4. Step 4: Simplify right side
    302,878.50x = 429,408,915,849
  5. Step 5: Solve for x
    x = 429,408,915,849/302,878.50
  6. Step 6: Final answer
    x = 1,417,759.65

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.