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Finding the Fourth Proportional to 375,867.33, 518,772.32 and 222,990.41

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Solution

The fourth proportional to 375,867.33, 518,772.32 and 222,990.41 is: 307,771.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,867.33 : 518,772.32 = 222,990.41 : x
  2. Step 2: Convert to fraction form
    375,867.33/518,772.32 = 222,990.41/x
  3. Step 3: Cross multiply
    375,867.33x = 518,772.32 × 222,990.41
  4. Step 4: Simplify right side
    375,867.33x = 115,681,248,624.64
  5. Step 5: Solve for x
    x = 115,681,248,624.64/375,867.33
  6. Step 6: Final answer
    x = 307,771.49

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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.