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Finding the Fourth Proportional to 373,956, 515,797.40 and 253,044.06

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Solution

The fourth proportional to 373,956, 515,797.40 and 253,044.06 is: 349,023.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,956 : 515,797.40 = 253,044.06 : x
  2. Step 2: Convert to fraction form
    373,956/515,797.40 = 253,044.06/x
  3. Step 3: Cross multiply
    373,956x = 515,797.40 × 253,044.06
  4. Step 4: Simplify right side
    373,956x = 130,519,466,968.22
  5. Step 5: Solve for x
    x = 130,519,466,968.22/373,956
  6. Step 6: Final answer
    x = 349,023.59

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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.