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Finding the Fourth Proportional to 591,790.86, 887,367.96 and 306,774.87

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Solution

The fourth proportional to 591,790.86, 887,367.96 and 306,774.87 is: 459,997.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,790.86 : 887,367.96 = 306,774.87 : x
  2. Step 2: Convert to fraction form
    591,790.86/887,367.96 = 306,774.87/x
  3. Step 3: Cross multiply
    591,790.86x = 887,367.96 × 306,774.87
  4. Step 4: Simplify right side
    591,790.86x = 272,222,190,571.17
  5. Step 5: Solve for x
    x = 272,222,190,571.17/591,790.86
  6. Step 6: Final answer
    x = 459,997.29

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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.