Home / 491,086.28-677,692.14-276,226.28

Finding the Fourth Proportional to 491,086.28, 677,692.14 and 276,226.28

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Solution

The fourth proportional to 491,086.28, 677,692.14 and 276,226.28 is: 381,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,086.28 : 677,692.14 = 276,226.28 : x
  2. Step 2: Convert to fraction form
    491,086.28/677,692.14 = 276,226.28/x
  3. Step 3: Cross multiply
    491,086.28x = 677,692.14 × 276,226.28
  4. Step 4: Simplify right side
    491,086.28x = 187,196,378,817.44
  5. Step 5: Solve for x
    x = 187,196,378,817.44/491,086.28
  6. Step 6: Final answer
    x = 381,188.37

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1.5x scale

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.