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Finding the Fourth Proportional to 272,057.88, 408,727.16 and 256,952.20

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Solution

The fourth proportional to 272,057.88, 408,727.16 and 256,952.20 is: 386,033.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,057.88 : 408,727.16 = 256,952.20 : x
  2. Step 2: Convert to fraction form
    272,057.88/408,727.16 = 256,952.20/x
  3. Step 3: Cross multiply
    272,057.88x = 408,727.16 × 256,952.20
  4. Step 4: Simplify right side
    272,057.88x = 105,023,342,961.75
  5. Step 5: Solve for x
    x = 105,023,342,961.75/272,057.88
  6. Step 6: Final answer
    x = 386,033.09

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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.