Home / 373,832.78-515,894.67-212,684.36

Finding the Fourth Proportional to 373,832.78, 515,894.67 and 212,684.36

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Solution

The fourth proportional to 373,832.78, 515,894.67 and 212,684.36 is: 293,507.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,832.78 : 515,894.67 = 212,684.36 : x
  2. Step 2: Convert to fraction form
    373,832.78/515,894.67 = 212,684.36/x
  3. Step 3: Cross multiply
    373,832.78x = 515,894.67 × 212,684.36
  4. Step 4: Simplify right side
    373,832.78x = 109,722,725,136.89
  5. Step 5: Solve for x
    x = 109,722,725,136.89/373,832.78
  6. Step 6: Final answer
    x = 293,507.51

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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.