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Finding the Fourth Proportional to 340,626.82, 470,069.58 and 189,723.82

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Solution

The fourth proportional to 340,626.82, 470,069.58 and 189,723.82 is: 261,821.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,626.82 : 470,069.58 = 189,723.82 : x
  2. Step 2: Convert to fraction form
    340,626.82/470,069.58 = 189,723.82/x
  3. Step 3: Cross multiply
    340,626.82x = 470,069.58 × 189,723.82
  4. Step 4: Simplify right side
    340,626.82x = 89,183,396,383.40
  5. Step 5: Solve for x
    x = 89,183,396,383.40/340,626.82
  6. Step 6: Final answer
    x = 261,821.42

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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.