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Finding the Fourth Proportional to 447,569.64, 617,662.40 and 243,610.71

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Solution

The fourth proportional to 447,569.64, 617,662.40 and 243,610.71 is: 336,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,569.64 : 617,662.40 = 243,610.71 : x
  2. Step 2: Convert to fraction form
    447,569.64/617,662.40 = 243,610.71/x
  3. Step 3: Cross multiply
    447,569.64x = 617,662.40 × 243,610.71
  4. Step 4: Simplify right side
    447,569.64x = 150,469,175,804.30
  5. Step 5: Solve for x
    x = 150,469,175,804.30/447,569.64
  6. Step 6: Final answer
    x = 336,191.65

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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.