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Finding the Third Proportional to 778,671 and 1,726,434

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Solution

The third proportional to 778,671 and 1,726,434 is: 3,827,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,671 : 1,726,434 = 1,726,434 : x
  2. Step 2: Convert to fraction form
    778,671/1,726,434 = 1,726,434/x
  3. Step 3: Cross multiply
    778,671x = 1,726,434 × 1,726,434
  4. Step 4: Simplify right side
    778,671x = 2,980,574,356,356
  5. Step 5: Solve for x
    x = 2,980,574,356,356/778,671
  6. Step 6: Final answer
    x = 3,827,771.11

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.