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Finding the Fourth Proportional to 373,832.90, 515,882.77 and 212,684.48

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Solution

The fourth proportional to 373,832.90, 515,882.77 and 212,684.48 is: 293,500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,832.90 : 515,882.77 = 212,684.48 : x
  2. Step 2: Convert to fraction form
    373,832.90/515,882.77 = 212,684.48/x
  3. Step 3: Cross multiply
    373,832.90x = 515,882.77 × 212,684.48
  4. Step 4: Simplify right side
    373,832.90x = 109,720,258,678.41
  5. Step 5: Solve for x
    x = 109,720,258,678.41/373,832.90
  6. Step 6: Final answer
    x = 293,500.81

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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.