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Finding the Third Proportional to 455,716 and 981,553

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Solution

The third proportional to 455,716 and 981,553 is: 2,114,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,716 : 981,553 = 981,553 : x
  2. Step 2: Convert to fraction form
    455,716/981,553 = 981,553/x
  3. Step 3: Cross multiply
    455,716x = 981,553 × 981,553
  4. Step 4: Simplify right side
    455,716x = 963,446,291,809
  5. Step 5: Solve for x
    x = 963,446,291,809/455,716
  6. Step 6: Final answer
    x = 2,114,137.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.