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Finding the Fourth Proportional to 322,498.14, 483,747.21 and 266,977.50

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Solution

The fourth proportional to 322,498.14, 483,747.21 and 266,977.50 is: 400,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,498.14 : 483,747.21 = 266,977.50 : x
  2. Step 2: Convert to fraction form
    322,498.14/483,747.21 = 266,977.50/x
  3. Step 3: Cross multiply
    322,498.14x = 483,747.21 × 266,977.50
  4. Step 4: Simplify right side
    322,498.14x = 129,149,620,757.78
  5. Step 5: Solve for x
    x = 129,149,620,757.78/322,498.14
  6. Step 6: Final answer
    x = 400,466.25

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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.