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Finding the Fourth Proportional to 456,596.12, 629,959.80 and 275,363.48

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Solution

The fourth proportional to 456,596.12, 629,959.80 and 275,363.48 is: 379,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,596.12 : 629,959.80 = 275,363.48 : x
  2. Step 2: Convert to fraction form
    456,596.12/629,959.80 = 275,363.48/x
  3. Step 3: Cross multiply
    456,596.12x = 629,959.80 × 275,363.48
  4. Step 4: Simplify right side
    456,596.12x = 173,467,922,788.10
  5. Step 5: Solve for x
    x = 173,467,922,788.10/456,596.12
  6. Step 6: Final answer
    x = 379,915.46

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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.