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Finding the Fourth Proportional to 358,221.87, 494,346.18 and 197,073.46

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Solution

The fourth proportional to 358,221.87, 494,346.18 and 197,073.46 is: 271,961.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,221.87 : 494,346.18 = 197,073.46 : x
  2. Step 2: Convert to fraction form
    358,221.87/494,346.18 = 197,073.46/x
  3. Step 3: Cross multiply
    358,221.87x = 494,346.18 × 197,073.46
  4. Step 4: Simplify right side
    358,221.87x = 97,422,511,637.70
  5. Step 5: Solve for x
    x = 97,422,511,637.70/358,221.87
  6. Step 6: Final answer
    x = 271,961.37

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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.