Home / 1,668,769.70-2,503,251.41-644,105.66

Finding the Fourth Proportional to 1,668,769.70, 2,503,251.41 and 644,105.66

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Solution

The fourth proportional to 1,668,769.70, 2,503,251.41 and 644,105.66 is: 966,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,769.70 : 2,503,251.41 = 644,105.66 : x
  2. Step 2: Convert to fraction form
    1,668,769.70/2,503,251.41 = 644,105.66/x
  3. Step 3: Cross multiply
    1,668,769.70x = 2,503,251.41 × 644,105.66
  4. Step 4: Simplify right side
    1,668,769.70x = 1,612,358,401,583.98
  5. Step 5: Solve for x
    x = 1,612,358,401,583.98/1,668,769.70
  6. Step 6: Final answer
    x = 966,195.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.