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Finding the Third Proportional to 591,879 and 1,278,354

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Solution

The third proportional to 591,879 and 1,278,354 is: 2,761,018.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,879 : 1,278,354 = 1,278,354 : x
  2. Step 2: Convert to fraction form
    591,879/1,278,354 = 1,278,354/x
  3. Step 3: Cross multiply
    591,879x = 1,278,354 × 1,278,354
  4. Step 4: Simplify right side
    591,879x = 1,634,188,949,316
  5. Step 5: Solve for x
    x = 1,634,188,949,316/591,879
  6. Step 6: Final answer
    x = 2,761,018.64

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.