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Finding the Fourth Proportional to 373,955.25, 515,796.36 and 253,043.31

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Solution

The fourth proportional to 373,955.25, 515,796.36 and 253,043.31 is: 349,022.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,955.25 : 515,796.36 = 253,043.31 : x
  2. Step 2: Convert to fraction form
    373,955.25/515,796.36 = 253,043.31/x
  3. Step 3: Cross multiply
    373,955.25x = 515,796.36 × 253,043.31
  4. Step 4: Simplify right side
    373,955.25x = 130,518,818,220.35
  5. Step 5: Solve for x
    x = 130,518,818,220.35/373,955.25
  6. Step 6: Final answer
    x = 349,022.56

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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.