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Finding the Fourth Proportional to 447,589.82, 617,681.83 and 243,646.60

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Solution

The fourth proportional to 447,589.82, 617,681.83 and 243,646.60 is: 336,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,589.82 : 617,681.83 = 243,646.60 : x
  2. Step 2: Convert to fraction form
    447,589.82/617,681.83 = 243,646.60/x
  3. Step 3: Cross multiply
    447,589.82x = 617,681.83 × 243,646.60
  4. Step 4: Simplify right side
    447,589.82x = 150,496,077,761.28
  5. Step 5: Solve for x
    x = 150,496,077,761.28/447,589.82
  6. Step 6: Final answer
    x = 336,236.60

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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.