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Finding the Fourth Proportional to 324,717.50, 448,115.21 and 181,486.82

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Solution

The fourth proportional to 324,717.50, 448,115.21 and 181,486.82 is: 250,454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,717.50 : 448,115.21 = 181,486.82 : x
  2. Step 2: Convert to fraction form
    324,717.50/448,115.21 = 181,486.82/x
  3. Step 3: Cross multiply
    324,717.50x = 448,115.21 × 181,486.82
  4. Step 4: Simplify right side
    324,717.50x = 81,327,001,308.52
  5. Step 5: Solve for x
    x = 81,327,001,308.52/324,717.50
  6. Step 6: Final answer
    x = 250,454.63

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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.