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Finding the Fourth Proportional to 438,213.25, 604,734.33 and 237,009.25

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Solution

The fourth proportional to 438,213.25, 604,734.33 and 237,009.25 is: 327,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,213.25 : 604,734.33 = 237,009.25 : x
  2. Step 2: Convert to fraction form
    438,213.25/604,734.33 = 237,009.25/x
  3. Step 3: Cross multiply
    438,213.25x = 604,734.33 × 237,009.25
  4. Step 4: Simplify right side
    438,213.25x = 143,327,630,002.55
  5. Step 5: Solve for x
    x = 143,327,630,002.55/438,213.25
  6. Step 6: Final answer
    x = 327,072.79

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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.