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Finding the Fourth Proportional to 512,167.80, 768,251.70 and 179,743.80

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Solution

The fourth proportional to 512,167.80, 768,251.70 and 179,743.80 is: 269,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,167.80 : 768,251.70 = 179,743.80 : x
  2. Step 2: Convert to fraction form
    512,167.80/768,251.70 = 179,743.80/x
  3. Step 3: Cross multiply
    512,167.80x = 768,251.70 × 179,743.80
  4. Step 4: Simplify right side
    512,167.80x = 138,088,479,914.46
  5. Step 5: Solve for x
    x = 138,088,479,914.46/512,167.80
  6. Step 6: Final answer
    x = 269,615.70

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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.