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Finding the Fourth Proportional to 432,513.78, 648,558.50 and 252,644.37

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Solution

The fourth proportional to 432,513.78, 648,558.50 and 252,644.37 is: 378,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,513.78 : 648,558.50 = 252,644.37 : x
  2. Step 2: Convert to fraction form
    432,513.78/648,558.50 = 252,644.37/x
  3. Step 3: Cross multiply
    432,513.78x = 648,558.50 × 252,644.37
  4. Step 4: Simplify right side
    432,513.78x = 163,854,649,945.33
  5. Step 5: Solve for x
    x = 163,854,649,945.33/432,513.78
  6. Step 6: Final answer
    x = 378,842.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.