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Finding the Fourth Proportional to 591,120.87, 886,805.91 and 191,730.57

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Solution

The fourth proportional to 591,120.87, 886,805.91 and 191,730.57 is: 287,636.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,120.87 : 886,805.91 = 191,730.57 : x
  2. Step 2: Convert to fraction form
    591,120.87/886,805.91 = 191,730.57/x
  3. Step 3: Cross multiply
    591,120.87x = 886,805.91 × 191,730.57
  4. Step 4: Simplify right side
    591,120.87x = 170,027,802,603.67
  5. Step 5: Solve for x
    x = 170,027,802,603.67/591,120.87
  6. Step 6: Final answer
    x = 287,636.27

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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.