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Finding the Fourth Proportional to 505,696.26, 758,573.58 and 190,155.90

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Solution

The fourth proportional to 505,696.26, 758,573.58 and 190,155.90 is: 285,244.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,696.26 : 758,573.58 = 190,155.90 : x
  2. Step 2: Convert to fraction form
    505,696.26/758,573.58 = 190,155.90/x
  3. Step 3: Cross multiply
    505,696.26x = 758,573.58 × 190,155.90
  4. Step 4: Simplify right side
    505,696.26x = 144,247,241,821.12
  5. Step 5: Solve for x
    x = 144,247,241,821.12/505,696.26
  6. Step 6: Final answer
    x = 285,244.83

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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.