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Finding the Fourth Proportional to 325,418.61, 448,762.23 and 253,772.49

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Solution

The fourth proportional to 325,418.61, 448,762.23 and 253,772.49 is: 349,960.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,418.61 : 448,762.23 = 253,772.49 : x
  2. Step 2: Convert to fraction form
    325,418.61/448,762.23 = 253,772.49/x
  3. Step 3: Cross multiply
    325,418.61x = 448,762.23 × 253,772.49
  4. Step 4: Simplify right side
    325,418.61x = 113,883,508,525.05
  5. Step 5: Solve for x
    x = 113,883,508,525.05/325,418.61
  6. Step 6: Final answer
    x = 349,960.04

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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.