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Finding the Fourth Proportional to 480,704.91, 663,172.32 and 276,707.02

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Solution

The fourth proportional to 480,704.91, 663,172.32 and 276,707.02 is: 381,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,704.91 : 663,172.32 = 276,707.02 : x
  2. Step 2: Convert to fraction form
    480,704.91/663,172.32 = 276,707.02/x
  3. Step 3: Cross multiply
    480,704.91x = 663,172.32 × 276,707.02
  4. Step 4: Simplify right side
    480,704.91x = 183,504,436,413.69
  5. Step 5: Solve for x
    x = 183,504,436,413.69/480,704.91
  6. Step 6: Final answer
    x = 381,740.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.