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Finding the Fourth Proportional to 593,647.11, 819,419.09 and 378,786.78

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Solution

The fourth proportional to 593,647.11, 819,419.09 and 378,786.78 is: 522,844.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,647.11 : 819,419.09 = 378,786.78 : x
  2. Step 2: Convert to fraction form
    593,647.11/819,419.09 = 378,786.78/x
  3. Step 3: Cross multiply
    593,647.11x = 819,419.09 × 378,786.78
  4. Step 4: Simplify right side
    593,647.11x = 310,385,116,677.70
  5. Step 5: Solve for x
    x = 310,385,116,677.70/593,647.11
  6. Step 6: Final answer
    x = 522,844.48

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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.