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Finding the Fourth Proportional to 439,564.51, 606,601.94 and 255,912.54

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Solution

The fourth proportional to 439,564.51, 606,601.94 and 255,912.54 is: 353,161.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,564.51 : 606,601.94 = 255,912.54 : x
  2. Step 2: Convert to fraction form
    439,564.51/606,601.94 = 255,912.54/x
  3. Step 3: Cross multiply
    439,564.51x = 606,601.94 × 255,912.54
  4. Step 4: Simplify right side
    439,564.51x = 155,237,043,234.33
  5. Step 5: Solve for x
    x = 155,237,043,234.33/439,564.51
  6. Step 6: Final answer
    x = 353,161.00

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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.