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Finding the Fourth Proportional to 1,376,865, 1,900,251.90 and 773,253

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Solution

The fourth proportional to 1,376,865, 1,900,251.90 and 773,253 is: 1,067,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,865 : 1,900,251.90 = 773,253 : x
  2. Step 2: Convert to fraction form
    1,376,865/1,900,251.90 = 773,253/x
  3. Step 3: Cross multiply
    1,376,865x = 1,900,251.90 × 773,253
  4. Step 4: Simplify right side
    1,376,865x = 1,469,375,482,430.70
  5. Step 5: Solve for x
    x = 1,469,375,482,430.70/1,376,865
  6. Step 6: Final answer
    x = 1,067,189.22

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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.