Home / 331,567.20-496,767.60-272,080.80

Finding the Fourth Proportional to 331,567.20, 496,767.60 and 272,080.80

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Solution

The fourth proportional to 331,567.20, 496,767.60 and 272,080.80 is: 407,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,567.20 : 496,767.60 = 272,080.80 : x
  2. Step 2: Convert to fraction form
    331,567.20/496,767.60 = 272,080.80/x
  3. Step 3: Cross multiply
    331,567.20x = 496,767.60 × 272,080.80
  4. Step 4: Simplify right side
    331,567.20x = 135,160,926,022.08
  5. Step 5: Solve for x
    x = 135,160,926,022.08/331,567.20
  6. Step 6: Final answer
    x = 407,642.63

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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.