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Finding the Fourth Proportional to 591,077.37, 886,740.61 and 191,687

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Solution

The fourth proportional to 591,077.37, 886,740.61 and 191,687 is: 287,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,077.37 : 886,740.61 = 191,687 : x
  2. Step 2: Convert to fraction form
    591,077.37/886,740.61 = 191,687/x
  3. Step 3: Cross multiply
    591,077.37x = 886,740.61 × 191,687
  4. Step 4: Simplify right side
    591,077.37x = 169,976,647,309.07
  5. Step 5: Solve for x
    x = 169,976,647,309.07/591,077.37
  6. Step 6: Final answer
    x = 287,570.89

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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.