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Finding the Fourth Proportional to 352,396.80, 486,307.83 and 191,251.85

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Solution

The fourth proportional to 352,396.80, 486,307.83 and 191,251.85 is: 263,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,396.80 : 486,307.83 = 191,251.85 : x
  2. Step 2: Convert to fraction form
    352,396.80/486,307.83 = 191,251.85/x
  3. Step 3: Cross multiply
    352,396.80x = 486,307.83 × 191,251.85
  4. Step 4: Simplify right side
    352,396.80x = 93,007,269,725.45
  5. Step 5: Solve for x
    x = 93,007,269,725.45/352,396.80
  6. Step 6: Final answer
    x = 263,927.68

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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.