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Finding the Fourth Proportional to 358,057.87, 494,109.99 and 196,912.91

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Solution

The fourth proportional to 358,057.87, 494,109.99 and 196,912.91 is: 271,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,057.87 : 494,109.99 = 196,912.91 : x
  2. Step 2: Convert to fraction form
    358,057.87/494,109.99 = 196,912.91/x
  3. Step 3: Cross multiply
    358,057.87x = 494,109.99 × 196,912.91
  4. Step 4: Simplify right side
    358,057.87x = 97,296,637,226.25
  5. Step 5: Solve for x
    x = 97,296,637,226.25/358,057.87
  6. Step 6: Final answer
    x = 271,734.39

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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.