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Finding the Fourth Proportional to 325,699.65, 488,385.45 and 192,620.70

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Solution

The fourth proportional to 325,699.65, 488,385.45 and 192,620.70 is: 288,834.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,699.65 : 488,385.45 = 192,620.70 : x
  2. Step 2: Convert to fraction form
    325,699.65/488,385.45 = 192,620.70/x
  3. Step 3: Cross multiply
    325,699.65x = 488,385.45 × 192,620.70
  4. Step 4: Simplify right side
    325,699.65x = 94,073,147,248.82
  5. Step 5: Solve for x
    x = 94,073,147,248.82/325,699.65
  6. Step 6: Final answer
    x = 288,834.04

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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.