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Finding the Fourth Proportional to 438,573.78, 605,233.66 and 237,369.78

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Solution

The fourth proportional to 438,573.78, 605,233.66 and 237,369.78 is: 327,571.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,573.78 : 605,233.66 = 237,369.78 : x
  2. Step 2: Convert to fraction form
    438,573.78/605,233.66 = 237,369.78/x
  3. Step 3: Cross multiply
    438,573.78x = 605,233.66 × 237,369.78
  4. Step 4: Simplify right side
    438,573.78x = 143,664,180,722.80
  5. Step 5: Solve for x
    x = 143,664,180,722.80/438,573.78
  6. Step 6: Final answer
    x = 327,571.29

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1.5x scale

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.