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Finding the Fourth Proportional to 574,291.43, 861,566.77 and 190,039.31

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Solution

The fourth proportional to 574,291.43, 861,566.77 and 190,039.31 is: 285,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,291.43 : 861,566.77 = 190,039.31 : x
  2. Step 2: Convert to fraction form
    574,291.43/861,566.77 = 190,039.31/x
  3. Step 3: Cross multiply
    574,291.43x = 861,566.77 × 190,039.31
  4. Step 4: Simplify right side
    574,291.43x = 163,731,550,656.99
  5. Step 5: Solve for x
    x = 163,731,550,656.99/574,291.43
  6. Step 6: Final answer
    x = 285,101.85

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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.