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Finding the Fourth Proportional to 322,687.56, 445,218.81 and 193,545.21

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Solution

The fourth proportional to 322,687.56, 445,218.81 and 193,545.21 is: 267,038.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,687.56 : 445,218.81 = 193,545.21 : x
  2. Step 2: Convert to fraction form
    322,687.56/445,218.81 = 193,545.21/x
  3. Step 3: Cross multiply
    322,687.56x = 445,218.81 × 193,545.21
  4. Step 4: Simplify right side
    322,687.56x = 86,169,968,077.40
  5. Step 5: Solve for x
    x = 86,169,968,077.40/322,687.56
  6. Step 6: Final answer
    x = 267,038.39

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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.