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Finding the Third Proportional to 612,380.63 and 1,329,919.50

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Solution

The third proportional to 612,380.63 and 1,329,919.50 is: 2,888,213.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,380.63 : 1,329,919.50 = 1,329,919.50 : x
  2. Step 2: Convert to fraction form
    612,380.63/1,329,919.50 = 1,329,919.50/x
  3. Step 3: Cross multiply
    612,380.63x = 1,329,919.50 × 1,329,919.50
  4. Step 4: Simplify right side
    612,380.63x = 1,768,685,876,480.25
  5. Step 5: Solve for x
    x = 1,768,685,876,480.25/612,380.63
  6. Step 6: Final answer
    x = 2,888,213.32

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.