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Finding the Fourth Proportional to 342,697.38, 472,922.32 and 191,794.38

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Solution

The fourth proportional to 342,697.38, 472,922.32 and 191,794.38 is: 264,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,697.38 : 472,922.32 = 191,794.38 : x
  2. Step 2: Convert to fraction form
    342,697.38/472,922.32 = 191,794.38/x
  3. Step 3: Cross multiply
    342,697.38x = 472,922.32 × 191,794.38
  4. Step 4: Simplify right side
    342,697.38x = 90,703,843,152.56
  5. Step 5: Solve for x
    x = 90,703,843,152.56/342,697.38
  6. Step 6: Final answer
    x = 264,676.21

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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.