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Finding the Fourth Proportional to 578,839.76, 798,544.41 and 349,269

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Solution

The fourth proportional to 578,839.76, 798,544.41 and 349,269 is: 481,837.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,839.76 : 798,544.41 = 349,269 : x
  2. Step 2: Convert to fraction form
    578,839.76/798,544.41 = 349,269/x
  3. Step 3: Cross multiply
    578,839.76x = 798,544.41 × 349,269
  4. Step 4: Simplify right side
    578,839.76x = 278,906,807,536.29
  5. Step 5: Solve for x
    x = 278,906,807,536.29/578,839.76
  6. Step 6: Final answer
    x = 481,837.69

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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.