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Finding the Fourth Proportional to 515,924.91, 773,603.19 and 276,319.62

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Solution

The fourth proportional to 515,924.91, 773,603.19 and 276,319.62 is: 414,327.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,924.91 : 773,603.19 = 276,319.62 : x
  2. Step 2: Convert to fraction form
    515,924.91/773,603.19 = 276,319.62/x
  3. Step 3: Cross multiply
    515,924.91x = 773,603.19 × 276,319.62
  4. Step 4: Simplify right side
    515,924.91x = 213,761,739,491.59
  5. Step 5: Solve for x
    x = 213,761,739,491.59/515,924.91
  6. Step 6: Final answer
    x = 414,327.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.