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Finding the Fourth Proportional to 605,256.91, 835,222.54 and 347,120.54

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Solution

The fourth proportional to 605,256.91, 835,222.54 and 347,120.54 is: 479,008.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,256.91 : 835,222.54 = 347,120.54 : x
  2. Step 2: Convert to fraction form
    605,256.91/835,222.54 = 347,120.54/x
  3. Step 3: Cross multiply
    605,256.91x = 835,222.54 × 347,120.54
  4. Step 4: Simplify right side
    605,256.91x = 289,922,897,843.99
  5. Step 5: Solve for x
    x = 289,922,897,843.99/605,256.91
  6. Step 6: Final answer
    x = 479,008.00

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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.