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Finding the Fourth Proportional to 922,651.80, 1,383,321.50 and 353,550.66

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Solution

The fourth proportional to 922,651.80, 1,383,321.50 and 353,550.66 is: 530,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,651.80 : 1,383,321.50 = 353,550.66 : x
  2. Step 2: Convert to fraction form
    922,651.80/1,383,321.50 = 353,550.66/x
  3. Step 3: Cross multiply
    922,651.80x = 1,383,321.50 × 353,550.66
  4. Step 4: Simplify right side
    922,651.80x = 489,074,229,317.19
  5. Step 5: Solve for x
    x = 489,074,229,317.19/922,651.80
  6. Step 6: Final answer
    x = 530,074.54

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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.