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Finding the Fourth Proportional to 327,622.70, 452,258.82 and 220,255

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Solution

The fourth proportional to 327,622.70, 452,258.82 and 220,255 is: 304,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,622.70 : 452,258.82 = 220,255 : x
  2. Step 2: Convert to fraction form
    327,622.70/452,258.82 = 220,255/x
  3. Step 3: Cross multiply
    327,622.70x = 452,258.82 × 220,255
  4. Step 4: Simplify right side
    327,622.70x = 99,612,266,399.10
  5. Step 5: Solve for x
    x = 99,612,266,399.10/327,622.70
  6. Step 6: Final answer
    x = 304,045.68

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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.