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Finding the Fourth Proportional to 438,853.54, 605,614.38 and 237,649.54

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Solution

The fourth proportional to 438,853.54, 605,614.38 and 237,649.54 is: 327,954.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,853.54 : 605,614.38 = 237,649.54 : x
  2. Step 2: Convert to fraction form
    438,853.54/605,614.38 = 237,649.54/x
  3. Step 3: Cross multiply
    438,853.54x = 605,614.38 × 237,649.54
  4. Step 4: Simplify right side
    438,853.54x = 143,923,978,824.39
  5. Step 5: Solve for x
    x = 143,923,978,824.39/438,853.54
  6. Step 6: Final answer
    x = 327,954.47

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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.