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Finding the Fourth Proportional to 591,077.91, 886,741.40 and 191,687.54

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Solution

The fourth proportional to 591,077.91, 886,741.40 and 191,687.54 is: 287,571.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,077.91 : 886,741.40 = 191,687.54 : x
  2. Step 2: Convert to fraction form
    591,077.91/886,741.40 = 191,687.54/x
  3. Step 3: Cross multiply
    591,077.91x = 886,741.40 × 191,687.54
  4. Step 4: Simplify right side
    591,077.91x = 169,977,275,582.51
  5. Step 5: Solve for x
    x = 169,977,275,582.51/591,077.91
  6. Step 6: Final answer
    x = 287,571.69

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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.