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Finding the Fourth Proportional to 512,922.30, 769,383.45 and 158,045.10

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Solution

The fourth proportional to 512,922.30, 769,383.45 and 158,045.10 is: 237,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,922.30 : 769,383.45 = 158,045.10 : x
  2. Step 2: Convert to fraction form
    512,922.30/769,383.45 = 158,045.10/x
  3. Step 3: Cross multiply
    512,922.30x = 769,383.45 × 158,045.10
  4. Step 4: Simplify right side
    512,922.30x = 121,597,284,293.60
  5. Step 5: Solve for x
    x = 121,597,284,293.60/512,922.30
  6. Step 6: Final answer
    x = 237,067.65

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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.