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Finding the Fourth Proportional to 400,561.88, 552,839.77 and 228,535.96

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Solution

The fourth proportional to 400,561.88, 552,839.77 and 228,535.96 is: 315,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,561.88 : 552,839.77 = 228,535.96 : x
  2. Step 2: Convert to fraction form
    400,561.88/552,839.77 = 228,535.96/x
  3. Step 3: Cross multiply
    400,561.88x = 552,839.77 × 228,535.96
  4. Step 4: Simplify right side
    400,561.88x = 126,343,765,627.03
  5. Step 5: Solve for x
    x = 126,343,765,627.03/400,561.88
  6. Step 6: Final answer
    x = 315,416.35

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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.