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Finding the Fourth Proportional to 885,874.42, 1,222,489.65 and 483,469.30

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Solution

The fourth proportional to 885,874.42, 1,222,489.65 and 483,469.30 is: 667,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,874.42 : 1,222,489.65 = 483,469.30 : x
  2. Step 2: Convert to fraction form
    885,874.42/1,222,489.65 = 483,469.30/x
  3. Step 3: Cross multiply
    885,874.42x = 1,222,489.65 × 483,469.30
  4. Step 4: Simplify right side
    885,874.42x = 591,036,215,342.75
  5. Step 5: Solve for x
    x = 591,036,215,342.75/885,874.42
  6. Step 6: Final answer
    x = 667,178.33

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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.