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Finding the Fourth Proportional to 358,135.69, 494,216.94 and 196,990.73

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Solution

The fourth proportional to 358,135.69, 494,216.94 and 196,990.73 is: 271,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,135.69 : 494,216.94 = 196,990.73 : x
  2. Step 2: Convert to fraction form
    358,135.69/494,216.94 = 196,990.73/x
  3. Step 3: Cross multiply
    358,135.69x = 494,216.94 × 196,990.73
  4. Step 4: Simplify right side
    358,135.69x = 97,356,155,788.97
  5. Step 5: Solve for x
    x = 97,356,155,788.97/358,135.69
  6. Step 6: Final answer
    x = 271,841.54

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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.