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Finding the Fourth Proportional to 1,927,482, 2,659,983.48 and 1,067,961.84

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Solution

The fourth proportional to 1,927,482, 2,659,983.48 and 1,067,961.84 is: 1,473,819.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927,482 : 2,659,983.48 = 1,067,961.84 : x
  2. Step 2: Convert to fraction form
    1,927,482/2,659,983.48 = 1,067,961.84/x
  3. Step 3: Cross multiply
    1,927,482x = 2,659,983.48 × 1,067,961.84
  4. Step 4: Simplify right side
    1,927,482x = 2,840,760,851,670.40
  5. Step 5: Solve for x
    x = 2,840,760,851,670.40/1,927,482
  6. Step 6: Final answer
    x = 1,473,819.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.