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Finding the Fourth Proportional to 366,736.20, 550,104.30 and 307,687.20

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Solution

The fourth proportional to 366,736.20, 550,104.30 and 307,687.20 is: 461,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,736.20 : 550,104.30 = 307,687.20 : x
  2. Step 2: Convert to fraction form
    366,736.20/550,104.30 = 307,687.20/x
  3. Step 3: Cross multiply
    366,736.20x = 550,104.30 × 307,687.20
  4. Step 4: Simplify right side
    366,736.20x = 169,260,051,774.96
  5. Step 5: Solve for x
    x = 169,260,051,774.96/366,736.20
  6. Step 6: Final answer
    x = 461,530.80

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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.