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Finding the Fourth Proportional to 519,690.25, 717,172.59 and 293,350.33

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Solution

The fourth proportional to 519,690.25, 717,172.59 and 293,350.33 is: 404,823.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,690.25 : 717,172.59 = 293,350.33 : x
  2. Step 2: Convert to fraction form
    519,690.25/717,172.59 = 293,350.33/x
  3. Step 3: Cross multiply
    519,690.25x = 717,172.59 × 293,350.33
  4. Step 4: Simplify right side
    519,690.25x = 210,382,815,943.46
  5. Step 5: Solve for x
    x = 210,382,815,943.46/519,690.25
  6. Step 6: Final answer
    x = 404,823.48

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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.