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Finding the Fourth Proportional to 373,628.52, 515,651.94 and 212,507.88

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Solution

The fourth proportional to 373,628.52, 515,651.94 and 212,507.88 is: 293,286.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,628.52 : 515,651.94 = 212,507.88 : x
  2. Step 2: Convert to fraction form
    373,628.52/515,651.94 = 212,507.88/x
  3. Step 3: Cross multiply
    373,628.52x = 515,651.94 × 212,507.88
  4. Step 4: Simplify right side
    373,628.52x = 109,580,100,587.29
  5. Step 5: Solve for x
    x = 109,580,100,587.29/373,628.52
  6. Step 6: Final answer
    x = 293,286.23

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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.