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Finding the Fourth Proportional to 373,588.67, 515,685.48 and 220,627.49

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Solution

The fourth proportional to 373,588.67, 515,685.48 and 220,627.49 is: 304,544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,588.67 : 515,685.48 = 220,627.49 : x
  2. Step 2: Convert to fraction form
    373,588.67/515,685.48 = 220,627.49/x
  3. Step 3: Cross multiply
    373,588.67x = 515,685.48 × 220,627.49
  4. Step 4: Simplify right side
    373,588.67x = 113,774,393,081.85
  5. Step 5: Solve for x
    x = 113,774,393,081.85/373,588.67
  6. Step 6: Final answer
    x = 304,544.55

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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.