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Finding the Fourth Proportional to 447,568.64, 617,661.02 and 243,609.71

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Solution

The fourth proportional to 447,568.64, 617,661.02 and 243,609.71 is: 336,190.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,568.64 : 617,661.02 = 243,609.71 : x
  2. Step 2: Convert to fraction form
    447,568.64/617,661.02 = 243,609.71/x
  3. Step 3: Cross multiply
    447,568.64x = 617,661.02 × 243,609.71
  4. Step 4: Simplify right side
    447,568.64x = 150,468,217,654.15
  5. Step 5: Solve for x
    x = 150,468,217,654.15/447,568.64
  6. Step 6: Final answer
    x = 336,190.26

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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.