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Finding the Fourth Proportional to 322,514.33, 445,043.44 and 189,886.20

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Solution

The fourth proportional to 322,514.33, 445,043.44 and 189,886.20 is: 262,027.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,514.33 : 445,043.44 = 189,886.20 : x
  2. Step 2: Convert to fraction form
    322,514.33/445,043.44 = 189,886.20/x
  3. Step 3: Cross multiply
    322,514.33x = 445,043.44 × 189,886.20
  4. Step 4: Simplify right side
    322,514.33x = 84,507,607,893.89
  5. Step 5: Solve for x
    x = 84,507,607,893.89/322,514.33
  6. Step 6: Final answer
    x = 262,027.46

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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.