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Finding the Fourth Proportional to 446,578.84, 615,662.94 and 356,241.24

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Solution

The fourth proportional to 446,578.84, 615,662.94 and 356,241.24 is: 491,121.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,578.84 : 615,662.94 = 356,241.24 : x
  2. Step 2: Convert to fraction form
    446,578.84/615,662.94 = 356,241.24/x
  3. Step 3: Cross multiply
    446,578.84x = 615,662.94 × 356,241.24
  4. Step 4: Simplify right side
    446,578.84x = 219,324,529,167.65
  5. Step 5: Solve for x
    x = 219,324,529,167.65/446,578.84
  6. Step 6: Final answer
    x = 491,121.63

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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.