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Finding the Fourth Proportional to 349,628.31, 482,350.41 and 196,631.42

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Solution

The fourth proportional to 349,628.31, 482,350.41 and 196,631.42 is: 271,274.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,628.31 : 482,350.41 = 196,631.42 : x
  2. Step 2: Convert to fraction form
    349,628.31/482,350.41 = 196,631.42/x
  3. Step 3: Cross multiply
    349,628.31x = 482,350.41 × 196,631.42
  4. Step 4: Simplify right side
    349,628.31x = 94,845,243,644.13
  5. Step 5: Solve for x
    x = 94,845,243,644.13/349,628.31
  6. Step 6: Final answer
    x = 271,274.50

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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.