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Finding the Fourth Proportional to 554,447.78, 831,546.18 and 254,640.14

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Solution

The fourth proportional to 554,447.78, 831,546.18 and 254,640.14 is: 381,902.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,447.78 : 831,546.18 = 254,640.14 : x
  2. Step 2: Convert to fraction form
    554,447.78/831,546.18 = 254,640.14/x
  3. Step 3: Cross multiply
    554,447.78x = 831,546.18 × 254,640.14
  4. Step 4: Simplify right side
    554,447.78x = 211,745,035,691.67
  5. Step 5: Solve for x
    x = 211,745,035,691.67/554,447.78
  6. Step 6: Final answer
    x = 381,902.58

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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.