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Finding the Fourth Proportional to 400,679.97, 552,953.25 and 228,625.94

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Solution

The fourth proportional to 400,679.97, 552,953.25 and 228,625.94 is: 315,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,679.97 : 552,953.25 = 228,625.94 : x
  2. Step 2: Convert to fraction form
    400,679.97/552,953.25 = 228,625.94/x
  3. Step 3: Cross multiply
    400,679.97x = 552,953.25 × 228,625.94
  4. Step 4: Simplify right side
    400,679.97x = 126,419,457,939.69
  5. Step 5: Solve for x
    x = 126,419,457,939.69/400,679.97
  6. Step 6: Final answer
    x = 315,512.30

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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.