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Finding the Fourth Proportional to 585,396.06, 807,981.56 and 381,091.14

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Solution

The fourth proportional to 585,396.06, 807,981.56 and 381,091.14 is: 525,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,396.06 : 807,981.56 = 381,091.14 : x
  2. Step 2: Convert to fraction form
    585,396.06/807,981.56 = 381,091.14/x
  3. Step 3: Cross multiply
    585,396.06x = 807,981.56 × 381,091.14
  4. Step 4: Simplify right side
    585,396.06x = 307,914,611,893.92
  5. Step 5: Solve for x
    x = 307,914,611,893.92/585,396.06
  6. Step 6: Final answer
    x = 525,993.65

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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.