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Finding the Fourth Proportional to 447,606.44, 617,690.53 and 243,659.05

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Solution

The fourth proportional to 447,606.44, 617,690.53 and 243,659.05 is: 336,246.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,606.44 : 617,690.53 = 243,659.05 : x
  2. Step 2: Convert to fraction form
    447,606.44/617,690.53 = 243,659.05/x
  3. Step 3: Cross multiply
    447,606.44x = 617,690.53 × 243,659.05
  4. Step 4: Simplify right side
    447,606.44x = 150,505,887,733.80
  5. Step 5: Solve for x
    x = 150,505,887,733.80/447,606.44
  6. Step 6: Final answer
    x = 336,246.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.