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Finding the Third Proportional to 455,554 and 996,913

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Solution

The third proportional to 455,554 and 996,913 is: 2,181,597.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,554 : 996,913 = 996,913 : x
  2. Step 2: Convert to fraction form
    455,554/996,913 = 996,913/x
  3. Step 3: Cross multiply
    455,554x = 996,913 × 996,913
  4. Step 4: Simplify right side
    455,554x = 993,835,529,569
  5. Step 5: Solve for x
    x = 993,835,529,569/455,554
  6. Step 6: Final answer
    x = 2,181,597.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.