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Finding the Fourth Proportional to 482,858.34, 666,467.13 and 329,958.42

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Solution

The fourth proportional to 482,858.34, 666,467.13 and 329,958.42 is: 455,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,858.34 : 666,467.13 = 329,958.42 : x
  2. Step 2: Convert to fraction form
    482,858.34/666,467.13 = 329,958.42/x
  3. Step 3: Cross multiply
    482,858.34x = 666,467.13 × 329,958.42
  4. Step 4: Simplify right side
    482,858.34x = 219,906,441,196.74
  5. Step 5: Solve for x
    x = 219,906,441,196.74/482,858.34
  6. Step 6: Final answer
    x = 455,426.41

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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.