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Finding the Third Proportional to 207,464.63 and 320,410.69

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Solution

The third proportional to 207,464.63 and 320,410.69 is: 494,845.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,464.63 : 320,410.69 = 320,410.69 : x
  2. Step 2: Convert to fraction form
    207,464.63/320,410.69 = 320,410.69/x
  3. Step 3: Cross multiply
    207,464.63x = 320,410.69 × 320,410.69
  4. Step 4: Simplify right side
    207,464.63x = 102,663,008,664.22
  5. Step 5: Solve for x
    x = 102,663,008,664.22/207,464.63
  6. Step 6: Final answer
    x = 494,845.85

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.