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Finding the Fourth Proportional to 1,694,674, 2,338,857.64 and 979,282

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Solution

The fourth proportional to 1,694,674, 2,338,857.64 and 979,282 is: 1,351,529.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694,674 : 2,338,857.64 = 979,282 : x
  2. Step 2: Convert to fraction form
    1,694,674/2,338,857.64 = 979,282/x
  3. Step 3: Cross multiply
    1,694,674x = 2,338,857.64 × 979,282
  4. Step 4: Simplify right side
    1,694,674x = 2,290,401,187,414.48
  5. Step 5: Solve for x
    x = 2,290,401,187,414.48/1,694,674
  6. Step 6: Final answer
    x = 1,351,529.08

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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.