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Finding the Fourth Proportional to 447,807.82, 617,960.12 and 243,857.16

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Solution

The fourth proportional to 447,807.82, 617,960.12 and 243,857.16 is: 336,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,807.82 : 617,960.12 = 243,857.16 : x
  2. Step 2: Convert to fraction form
    447,807.82/617,960.12 = 243,857.16/x
  3. Step 3: Cross multiply
    447,807.82x = 617,960.12 × 243,857.16
  4. Step 4: Simplify right side
    447,807.82x = 150,693,999,856.46
  5. Step 5: Solve for x
    x = 150,693,999,856.46/447,807.82
  6. Step 6: Final answer
    x = 336,514.89

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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.