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Finding the Fourth Proportional to 502,589.31, 693,578.61 and 273,146.60

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Solution

The fourth proportional to 502,589.31, 693,578.61 and 273,146.60 is: 376,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,589.31 : 693,578.61 = 273,146.60 : x
  2. Step 2: Convert to fraction form
    502,589.31/693,578.61 = 273,146.60/x
  3. Step 3: Cross multiply
    502,589.31x = 693,578.61 × 273,146.60
  4. Step 4: Simplify right side
    502,589.31x = 189,448,639,154.23
  5. Step 5: Solve for x
    x = 189,448,639,154.23/502,589.31
  6. Step 6: Final answer
    x = 376,945.22

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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.