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Finding the Fourth Proportional to 297,765.87, 410,919.50 and 161,799.82

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Solution

The fourth proportional to 297,765.87, 410,919.50 and 161,799.82 is: 223,285.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,765.87 : 410,919.50 = 161,799.82 : x
  2. Step 2: Convert to fraction form
    297,765.87/410,919.50 = 161,799.82/x
  3. Step 3: Cross multiply
    297,765.87x = 410,919.50 × 161,799.82
  4. Step 4: Simplify right side
    297,765.87x = 66,486,699,551.91
  5. Step 5: Solve for x
    x = 66,486,699,551.91/297,765.87
  6. Step 6: Final answer
    x = 223,285.16

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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.