Home / 457,896.20-686,844.30-120,936.20

Finding the Fourth Proportional to 457,896.20, 686,844.30 and 120,936.20

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Solution

The fourth proportional to 457,896.20, 686,844.30 and 120,936.20 is: 181,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,896.20 : 686,844.30 = 120,936.20 : x
  2. Step 2: Convert to fraction form
    457,896.20/686,844.30 = 120,936.20/x
  3. Step 3: Cross multiply
    457,896.20x = 686,844.30 × 120,936.20
  4. Step 4: Simplify right side
    457,896.20x = 83,064,339,633.66
  5. Step 5: Solve for x
    x = 83,064,339,633.66/457,896.20
  6. Step 6: Final answer
    x = 181,404.30

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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.