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Finding the Fourth Proportional to 304,887.80, 456,456.90 and 186,789.80

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Solution

The fourth proportional to 304,887.80, 456,456.90 and 186,789.80 is: 279,648.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,887.80 : 456,456.90 = 186,789.80 : x
  2. Step 2: Convert to fraction form
    304,887.80/456,456.90 = 186,789.80/x
  3. Step 3: Cross multiply
    304,887.80x = 456,456.90 × 186,789.80
  4. Step 4: Simplify right side
    304,887.80x = 85,261,493,059.62
  5. Step 5: Solve for x
    x = 85,261,493,059.62/304,887.80
  6. Step 6: Final answer
    x = 279,648.75

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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.