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Finding the Fourth Proportional to 319,198.43, 440,496.83 and 175,963.60

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Solution

The fourth proportional to 319,198.43, 440,496.83 and 175,963.60 is: 242,831.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,198.43 : 440,496.83 = 175,963.60 : x
  2. Step 2: Convert to fraction form
    319,198.43/440,496.83 = 175,963.60/x
  3. Step 3: Cross multiply
    319,198.43x = 440,496.83 × 175,963.60
  4. Step 4: Simplify right side
    319,198.43x = 77,511,407,995.39
  5. Step 5: Solve for x
    x = 77,511,407,995.39/319,198.43
  6. Step 6: Final answer
    x = 242,831.42

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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.