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Finding the Fourth Proportional to 322,810.80, 445,296.87 and 193,716.24

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Solution

The fourth proportional to 322,810.80, 445,296.87 and 193,716.24 is: 267,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,810.80 : 445,296.87 = 193,716.24 : x
  2. Step 2: Convert to fraction form
    322,810.80/445,296.87 = 193,716.24/x
  3. Step 3: Cross multiply
    322,810.80x = 445,296.87 × 193,716.24
  4. Step 4: Simplify right side
    322,810.80x = 86,261,235,340.17
  5. Step 5: Solve for x
    x = 86,261,235,340.17/322,810.80
  6. Step 6: Final answer
    x = 267,219.17

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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.