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Finding the Fourth Proportional to 349,638.37, 482,326.28 and 220,736.59

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Solution

The fourth proportional to 349,638.37, 482,326.28 and 220,736.59 is: 304,506.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,638.37 : 482,326.28 = 220,736.59 : x
  2. Step 2: Convert to fraction form
    349,638.37/482,326.28 = 220,736.59/x
  3. Step 3: Cross multiply
    349,638.37x = 482,326.28 × 220,736.59
  4. Step 4: Simplify right side
    349,638.37x = 106,467,056,832.85
  5. Step 5: Solve for x
    x = 106,467,056,832.85/349,638.37
  6. Step 6: Final answer
    x = 304,506.22

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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.