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Finding the Fourth Proportional to 633,664.56, 874,456.92 and 347,195.52

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Solution

The fourth proportional to 633,664.56, 874,456.92 and 347,195.52 is: 479,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,664.56 : 874,456.92 = 347,195.52 : x
  2. Step 2: Convert to fraction form
    633,664.56/874,456.92 = 347,195.52/x
  3. Step 3: Cross multiply
    633,664.56x = 874,456.92 × 347,195.52
  4. Step 4: Simplify right side
    633,664.56x = 303,607,525,057.00
  5. Step 5: Solve for x
    x = 303,607,525,057.00/633,664.56
  6. Step 6: Final answer
    x = 479,129.72

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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.