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Finding the Fourth Proportional to 537,640.05, 741,937.40 and 295,917.42

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Solution

The fourth proportional to 537,640.05, 741,937.40 and 295,917.42 is: 408,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,640.05 : 741,937.40 = 295,917.42 : x
  2. Step 2: Convert to fraction form
    537,640.05/741,937.40 = 295,917.42/x
  3. Step 3: Cross multiply
    537,640.05x = 741,937.40 × 295,917.42
  4. Step 4: Simplify right side
    537,640.05x = 219,552,199,729.92
  5. Step 5: Solve for x
    x = 219,552,199,729.92/537,640.05
  6. Step 6: Final answer
    x = 408,362.81

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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.