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Finding the Fourth Proportional to 304,329.30, 455,619.15 and 186,231.30

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Solution

The fourth proportional to 304,329.30, 455,619.15 and 186,231.30 is: 278,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,329.30 : 455,619.15 = 186,231.30 : x
  2. Step 2: Convert to fraction form
    304,329.30/455,619.15 = 186,231.30/x
  3. Step 3: Cross multiply
    304,329.30x = 455,619.15 × 186,231.30
  4. Step 4: Simplify right side
    304,329.30x = 84,850,546,609.40
  5. Step 5: Solve for x
    x = 84,850,546,609.40/304,329.30
  6. Step 6: Final answer
    x = 278,811.62

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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.