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Finding the Fourth Proportional to 304,481.80, 455,847.90 and 186,383.80

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Solution

The fourth proportional to 304,481.80, 455,847.90 and 186,383.80 is: 279,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,481.80 : 455,847.90 = 186,383.80 : x
  2. Step 2: Convert to fraction form
    304,481.80/455,847.90 = 186,383.80/x
  3. Step 3: Cross multiply
    304,481.80x = 455,847.90 × 186,383.80
  4. Step 4: Simplify right side
    304,481.80x = 84,962,663,824.02
  5. Step 5: Solve for x
    x = 84,962,663,824.02/304,481.80
  6. Step 6: Final answer
    x = 279,040.20

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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.