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Finding the Fourth Proportional to 325,667.25, 488,510.46 and 277,981.67

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Solution

The fourth proportional to 325,667.25, 488,510.46 and 277,981.67 is: 416,980.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,667.25 : 488,510.46 = 277,981.67 : x
  2. Step 2: Convert to fraction form
    325,667.25/488,510.46 = 277,981.67/x
  3. Step 3: Cross multiply
    325,667.25x = 488,510.46 × 277,981.67
  4. Step 4: Simplify right side
    325,667.25x = 135,796,954,704.54
  5. Step 5: Solve for x
    x = 135,796,954,704.54/325,667.25
  6. Step 6: Final answer
    x = 416,980.69

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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.