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Finding the Fourth Proportional to 347,761.53, 479,928.78 and 194,790.60

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Solution

The fourth proportional to 347,761.53, 479,928.78 and 194,790.60 is: 268,821.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,761.53 : 479,928.78 = 194,790.60 : x
  2. Step 2: Convert to fraction form
    347,761.53/479,928.78 = 194,790.60/x
  3. Step 3: Cross multiply
    347,761.53x = 479,928.78 × 194,790.60
  4. Step 4: Simplify right side
    347,761.53x = 93,485,615,013.47
  5. Step 5: Solve for x
    x = 93,485,615,013.47/347,761.53
  6. Step 6: Final answer
    x = 268,821.04

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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.