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Finding the Fourth Proportional to 304,759.72, 455,286.20 and 197,267.92

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Solution

The fourth proportional to 304,759.72, 455,286.20 and 197,267.92 is: 294,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,759.72 : 455,286.20 = 197,267.92 : x
  2. Step 2: Convert to fraction form
    304,759.72/455,286.20 = 197,267.92/x
  3. Step 3: Cross multiply
    304,759.72x = 455,286.20 × 197,267.92
  4. Step 4: Simplify right side
    304,759.72x = 89,813,361,678.70
  5. Step 5: Solve for x
    x = 89,813,361,678.70/304,759.72
  6. Step 6: Final answer
    x = 294,702.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.