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Finding the Fourth Proportional to 347,598.24, 479,695.68 and 196,692

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Solution

The fourth proportional to 347,598.24, 479,695.68 and 196,692 is: 271,440.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,598.24 : 479,695.68 = 196,692 : x
  2. Step 2: Convert to fraction form
    347,598.24/479,695.68 = 196,692/x
  3. Step 3: Cross multiply
    347,598.24x = 479,695.68 × 196,692
  4. Step 4: Simplify right side
    347,598.24x = 94,352,302,690.56
  5. Step 5: Solve for x
    x = 94,352,302,690.56/347,598.24
  6. Step 6: Final answer
    x = 271,440.68

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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.