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Finding the Third Proportional to 619,346 and 872,176

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Solution

The third proportional to 619,346 and 872,176 is: 1,228,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,346 : 872,176 = 872,176 : x
  2. Step 2: Convert to fraction form
    619,346/872,176 = 872,176/x
  3. Step 3: Cross multiply
    619,346x = 872,176 × 872,176
  4. Step 4: Simplify right side
    619,346x = 760,690,974,976
  5. Step 5: Solve for x
    x = 760,690,974,976/619,346
  6. Step 6: Final answer
    x = 1,228,216.50

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.