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Finding the Third Proportional to 340,326 and 500,661

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Solution

The third proportional to 340,326 and 500,661 is: 736,533.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,326 : 500,661 = 500,661 : x
  2. Step 2: Convert to fraction form
    340,326/500,661 = 500,661/x
  3. Step 3: Cross multiply
    340,326x = 500,661 × 500,661
  4. Step 4: Simplify right side
    340,326x = 250,661,436,921
  5. Step 5: Solve for x
    x = 250,661,436,921/340,326
  6. Step 6: Final answer
    x = 736,533.31

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.