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Finding the Fourth Proportional to 580,617.64, 801,231.78 and 325,979.56

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Solution

The fourth proportional to 580,617.64, 801,231.78 and 325,979.56 is: 449,840.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,617.64 : 801,231.78 = 325,979.56 : x
  2. Step 2: Convert to fraction form
    580,617.64/801,231.78 = 325,979.56/x
  3. Step 3: Cross multiply
    580,617.64x = 801,231.78 × 325,979.56
  4. Step 4: Simplify right side
    580,617.64x = 261,185,183,102.42
  5. Step 5: Solve for x
    x = 261,185,183,102.42/580,617.64
  6. Step 6: Final answer
    x = 449,840.25

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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.