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Finding the Fourth Proportional to 304,073.20, 455,418.60 and 192,098.80

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Solution

The fourth proportional to 304,073.20, 455,418.60 and 192,098.80 is: 287,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,073.20 : 455,418.60 = 192,098.80 : x
  2. Step 2: Convert to fraction form
    304,073.20/455,418.60 = 192,098.80/x
  3. Step 3: Cross multiply
    304,073.20x = 455,418.60 × 192,098.80
  4. Step 4: Simplify right side
    304,073.20x = 87,485,366,557.68
  5. Step 5: Solve for x
    x = 87,485,366,557.68/304,073.20
  6. Step 6: Final answer
    x = 287,711.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.