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Finding the Fourth Proportional to 447,154.52, 617,067.12 and 243,201.04

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Solution

The fourth proportional to 447,154.52, 617,067.12 and 243,201.04 is: 335,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,154.52 : 617,067.12 = 243,201.04 : x
  2. Step 2: Convert to fraction form
    447,154.52/617,067.12 = 243,201.04/x
  3. Step 3: Cross multiply
    447,154.52x = 617,067.12 × 243,201.04
  4. Step 4: Simplify right side
    447,154.52x = 150,071,365,333.81
  5. Step 5: Solve for x
    x = 150,071,365,333.81/447,154.52
  6. Step 6: Final answer
    x = 335,614.11

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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.