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Finding the Fourth Proportional to 347,410.22, 479,385.81 and 194,456.97

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Solution

The fourth proportional to 347,410.22, 479,385.81 and 194,456.97 is: 268,328.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,410.22 : 479,385.81 = 194,456.97 : x
  2. Step 2: Convert to fraction form
    347,410.22/479,385.81 = 194,456.97/x
  3. Step 3: Cross multiply
    347,410.22x = 479,385.81 × 194,456.97
  4. Step 4: Simplify right side
    347,410.22x = 93,219,912,073.60
  5. Step 5: Solve for x
    x = 93,219,912,073.60/347,410.22
  6. Step 6: Final answer
    x = 268,328.07

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1.5x scale

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.