Home / 540,983.20-811,474.80-531,767.20

Finding the Fourth Proportional to 540,983.20, 811,474.80 and 531,767.20

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Solution

The fourth proportional to 540,983.20, 811,474.80 and 531,767.20 is: 797,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,983.20 : 811,474.80 = 531,767.20 : x
  2. Step 2: Convert to fraction form
    540,983.20/811,474.80 = 531,767.20/x
  3. Step 3: Cross multiply
    540,983.20x = 811,474.80 × 531,767.20
  4. Step 4: Simplify right side
    540,983.20x = 431,515,682,266.56
  5. Step 5: Solve for x
    x = 431,515,682,266.56/540,983.20
  6. Step 6: Final answer
    x = 797,650.80

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Double scale
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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.