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Finding the Fourth Proportional to 510,539.52, 765,636.72 and 190,625.04

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Solution

The fourth proportional to 510,539.52, 765,636.72 and 190,625.04 is: 285,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,539.52 : 765,636.72 = 190,625.04 : x
  2. Step 2: Convert to fraction form
    510,539.52/765,636.72 = 190,625.04/x
  3. Step 3: Cross multiply
    510,539.52x = 765,636.72 × 190,625.04
  4. Step 4: Simplify right side
    510,539.52x = 145,949,530,375.47
  5. Step 5: Solve for x
    x = 145,949,530,375.47/510,539.52
  6. Step 6: Final answer
    x = 285,873.13

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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.