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Finding the Fourth Proportional to 885,443.16, 1,327,375.80 and 324,346.44

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Solution

The fourth proportional to 885,443.16, 1,327,375.80 and 324,346.44 is: 486,230.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,443.16 : 1,327,375.80 = 324,346.44 : x
  2. Step 2: Convert to fraction form
    885,443.16/1,327,375.80 = 324,346.44/x
  3. Step 3: Cross multiply
    885,443.16x = 1,327,375.80 × 324,346.44
  4. Step 4: Simplify right side
    885,443.16x = 430,529,615,272.15
  5. Step 5: Solve for x
    x = 430,529,615,272.15/885,443.16
  6. Step 6: Final answer
    x = 486,230.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.