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Finding the Fourth Proportional to 400,558.48, 552,770.66 and 219,270.53

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Solution

The fourth proportional to 400,558.48, 552,770.66 and 219,270.53 is: 302,593.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,558.48 : 552,770.66 = 219,270.53 : x
  2. Step 2: Convert to fraction form
    400,558.48/552,770.66 = 219,270.53/x
  3. Step 3: Cross multiply
    400,558.48x = 552,770.66 × 219,270.53
  4. Step 4: Simplify right side
    400,558.48x = 121,206,315,872.22
  5. Step 5: Solve for x
    x = 121,206,315,872.22/400,558.48
  6. Step 6: Final answer
    x = 302,593.31

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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.