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Finding the Fourth Proportional to 347,606.16, 479,670.84 and 196,674

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Solution

The fourth proportional to 347,606.16, 479,670.84 and 196,674 is: 271,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,606.16 : 479,670.84 = 196,674 : x
  2. Step 2: Convert to fraction form
    347,606.16/479,670.84 = 196,674/x
  3. Step 3: Cross multiply
    347,606.16x = 479,670.84 × 196,674
  4. Step 4: Simplify right side
    347,606.16x = 94,338,782,786.16
  5. Step 5: Solve for x
    x = 94,338,782,786.16/347,606.16
  6. Step 6: Final answer
    x = 271,395.60

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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.