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Finding the Fourth Proportional to 322,467.55, 445,129.22 and 214,998.37

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Solution

The fourth proportional to 322,467.55, 445,129.22 and 214,998.37 is: 296,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,467.55 : 445,129.22 = 214,998.37 : x
  2. Step 2: Convert to fraction form
    322,467.55/445,129.22 = 214,998.37/x
  3. Step 3: Cross multiply
    322,467.55x = 445,129.22 × 214,998.37
  4. Step 4: Simplify right side
    322,467.55x = 95,702,056,164.04
  5. Step 5: Solve for x
    x = 95,702,056,164.04/322,467.55
  6. Step 6: Final answer
    x = 296,780.43

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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.