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Finding the Fourth Proportional to 605,296.26, 835,388.82 and 391,059.54

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Solution

The fourth proportional to 605,296.26, 835,388.82 and 391,059.54 is: 539,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,296.26 : 835,388.82 = 391,059.54 : x
  2. Step 2: Convert to fraction form
    605,296.26/835,388.82 = 391,059.54/x
  3. Step 3: Cross multiply
    605,296.26x = 835,388.82 × 391,059.54
  4. Step 4: Simplify right side
    605,296.26x = 326,686,767,670.34
  5. Step 5: Solve for x
    x = 326,686,767,670.34/605,296.26
  6. Step 6: Final answer
    x = 539,713.84

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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.