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Finding the Fourth Proportional to 342,358.83, 471,093.08 and 331,958.30

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Solution

The fourth proportional to 342,358.83, 471,093.08 and 331,958.30 is: 456,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,358.83 : 471,093.08 = 331,958.30 : x
  2. Step 2: Convert to fraction form
    342,358.83/471,093.08 = 331,958.30/x
  3. Step 3: Cross multiply
    342,358.83x = 471,093.08 × 331,958.30
  4. Step 4: Simplify right side
    342,358.83x = 156,383,253,963.31
  5. Step 5: Solve for x
    x = 156,383,253,963.31/342,358.83
  6. Step 6: Final answer
    x = 456,781.72

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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.