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Finding the Fourth Proportional to 621,790.87, 930,755.59 and 336,773.51

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Solution

The fourth proportional to 621,790.87, 930,755.59 and 336,773.51 is: 504,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,790.87 : 930,755.59 = 336,773.51 : x
  2. Step 2: Convert to fraction form
    621,790.87/930,755.59 = 336,773.51/x
  3. Step 3: Cross multiply
    621,790.87x = 930,755.59 × 336,773.51
  4. Step 4: Simplify right side
    621,790.87x = 313,453,832,120.89
  5. Step 5: Solve for x
    x = 313,453,832,120.89/621,790.87
  6. Step 6: Final answer
    x = 504,114.56

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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.