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Finding the Fourth Proportional to 373,968.78, 561,157.29 and 216,504.78

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Solution

The fourth proportional to 373,968.78, 561,157.29 and 216,504.78 is: 324,875.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,968.78 : 561,157.29 = 216,504.78 : x
  2. Step 2: Convert to fraction form
    373,968.78/561,157.29 = 216,504.78/x
  3. Step 3: Cross multiply
    373,968.78x = 561,157.29 × 216,504.78
  4. Step 4: Simplify right side
    373,968.78x = 121,493,235,616.85
  5. Step 5: Solve for x
    x = 121,493,235,616.85/373,968.78
  6. Step 6: Final answer
    x = 324,875.34

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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.