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Finding the Fourth Proportional to 606,445.74, 909,759.60 and 195,978.24

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Solution

The fourth proportional to 606,445.74, 909,759.60 and 195,978.24 is: 293,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,445.74 : 909,759.60 = 195,978.24 : x
  2. Step 2: Convert to fraction form
    606,445.74/909,759.60 = 195,978.24/x
  3. Step 3: Cross multiply
    606,445.74x = 909,759.60 × 195,978.24
  4. Step 4: Simplify right side
    606,445.74x = 178,293,085,231.10
  5. Step 5: Solve for x
    x = 178,293,085,231.10/606,445.74
  6. Step 6: Final answer
    x = 293,996.76

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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.