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Finding the Fourth Proportional to 331,691.94, 457,735.02 and 188,452.20

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Solution

The fourth proportional to 331,691.94, 457,735.02 and 188,452.20 is: 260,064.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,691.94 : 457,735.02 = 188,452.20 : x
  2. Step 2: Convert to fraction form
    331,691.94/457,735.02 = 188,452.20/x
  3. Step 3: Cross multiply
    331,691.94x = 457,735.02 × 188,452.20
  4. Step 4: Simplify right side
    331,691.94x = 86,261,171,536.04
  5. Step 5: Solve for x
    x = 86,261,171,536.04/331,691.94
  6. Step 6: Final answer
    x = 260,064.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.