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Finding the Fourth Proportional to 459,141.01, 685,239.50 and 447,183.59

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Solution

The fourth proportional to 459,141.01, 685,239.50 and 447,183.59 is: 667,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,141.01 : 685,239.50 = 447,183.59 : x
  2. Step 2: Convert to fraction form
    459,141.01/685,239.50 = 447,183.59/x
  3. Step 3: Cross multiply
    459,141.01x = 685,239.50 × 447,183.59
  4. Step 4: Simplify right side
    459,141.01x = 306,427,854,796.16
  5. Step 5: Solve for x
    x = 306,427,854,796.16/459,141.01
  6. Step 6: Final answer
    x = 667,393.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.