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Finding the Fourth Proportional to 358,134.69, 494,215.56 and 196,989.73

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Solution

The fourth proportional to 358,134.69, 494,215.56 and 196,989.73 is: 271,840.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,134.69 : 494,215.56 = 196,989.73 : x
  2. Step 2: Convert to fraction form
    358,134.69/494,215.56 = 196,989.73/x
  3. Step 3: Cross multiply
    358,134.69x = 494,215.56 × 196,989.73
  4. Step 4: Simplify right side
    358,134.69x = 97,355,392,796.66
  5. Step 5: Solve for x
    x = 97,355,392,796.66/358,134.69
  6. Step 6: Final answer
    x = 271,840.16

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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.