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Finding the Third Proportional to 291,124 and 444,460

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Solution

The third proportional to 291,124 and 444,460 is: 678,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,124 : 444,460 = 444,460 : x
  2. Step 2: Convert to fraction form
    291,124/444,460 = 444,460/x
  3. Step 3: Cross multiply
    291,124x = 444,460 × 444,460
  4. Step 4: Simplify right side
    291,124x = 197,544,691,600
  5. Step 5: Solve for x
    x = 197,544,691,600/291,124
  6. Step 6: Final answer
    x = 678,558.59

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.