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Finding the Fourth Proportional to 383,426.93, 529,131.27 and 222,377.48

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Solution

The fourth proportional to 383,426.93, 529,131.27 and 222,377.48 is: 306,882.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,426.93 : 529,131.27 = 222,377.48 : x
  2. Step 2: Convert to fraction form
    383,426.93/529,131.27 = 222,377.48/x
  3. Step 3: Cross multiply
    383,426.93x = 529,131.27 × 222,377.48
  4. Step 4: Simplify right side
    383,426.93x = 117,666,878,411.80
  5. Step 5: Solve for x
    x = 117,666,878,411.80/383,426.93
  6. Step 6: Final answer
    x = 306,882.14

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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.