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Finding the Fourth Proportional to 373,945.74, 515,783.26 and 253,033.80

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Solution

The fourth proportional to 373,945.74, 515,783.26 and 253,033.80 is: 349,009.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,945.74 : 515,783.26 = 253,033.80 : x
  2. Step 2: Convert to fraction form
    373,945.74/515,783.26 = 253,033.80/x
  3. Step 3: Cross multiply
    373,945.74x = 515,783.26 × 253,033.80
  4. Step 4: Simplify right side
    373,945.74x = 130,510,598,254.19
  5. Step 5: Solve for x
    x = 130,510,598,254.19/373,945.74
  6. Step 6: Final answer
    x = 349,009.45

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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.