Home / 1,086,369.20-1,629,616.11-287,630

Finding the Fourth Proportional to 1,086,369.20, 1,629,616.11 and 287,630

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Solution

The fourth proportional to 1,086,369.20, 1,629,616.11 and 287,630 is: 431,461.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,369.20 : 1,629,616.11 = 287,630 : x
  2. Step 2: Convert to fraction form
    1,086,369.20/1,629,616.11 = 287,630/x
  3. Step 3: Cross multiply
    1,086,369.20x = 1,629,616.11 × 287,630
  4. Step 4: Simplify right side
    1,086,369.20x = 468,726,481,719.30
  5. Step 5: Solve for x
    x = 468,726,481,719.30/1,086,369.20
  6. Step 6: Final answer
    x = 431,461.50

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Similar ratio
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1.5x scale

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.