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Finding the Fourth Proportional to 508,142.28, 762,271.74 and 171,067.26

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Solution

The fourth proportional to 508,142.28, 762,271.74 and 171,067.26 is: 256,620.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,142.28 : 762,271.74 = 171,067.26 : x
  2. Step 2: Convert to fraction form
    508,142.28/762,271.74 = 171,067.26/x
  3. Step 3: Cross multiply
    508,142.28x = 762,271.74 × 171,067.26
  4. Step 4: Simplify right side
    508,142.28x = 130,399,737,937.23
  5. Step 5: Solve for x
    x = 130,399,737,937.23/508,142.28
  6. Step 6: Final answer
    x = 256,620.52

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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.