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Finding the Fourth Proportional to 329,887.79, 455,672.22 and 244,021.31

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Solution

The fourth proportional to 329,887.79, 455,672.22 and 244,021.31 is: 337,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,887.79 : 455,672.22 = 244,021.31 : x
  2. Step 2: Convert to fraction form
    329,887.79/455,672.22 = 244,021.31/x
  3. Step 3: Cross multiply
    329,887.79x = 455,672.22 × 244,021.31
  4. Step 4: Simplify right side
    329,887.79x = 111,193,732,055.01
  5. Step 5: Solve for x
    x = 111,193,732,055.01/329,887.79
  6. Step 6: Final answer
    x = 337,065.32

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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.