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Finding the Fourth Proportional to 414,672.60, 622,008.90 and 204,720.60

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Solution

The fourth proportional to 414,672.60, 622,008.90 and 204,720.60 is: 307,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,672.60 : 622,008.90 = 204,720.60 : x
  2. Step 2: Convert to fraction form
    414,672.60/622,008.90 = 204,720.60/x
  3. Step 3: Cross multiply
    414,672.60x = 622,008.90 × 204,720.60
  4. Step 4: Simplify right side
    414,672.60x = 127,338,035,213.34
  5. Step 5: Solve for x
    x = 127,338,035,213.34/414,672.60
  6. Step 6: Final answer
    x = 307,080.90

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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.