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Finding the Fourth Proportional to 554,146.25, 831,219.38 and 254,878.54

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Solution

The fourth proportional to 554,146.25, 831,219.38 and 254,878.54 is: 382,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,146.25 : 831,219.38 = 254,878.54 : x
  2. Step 2: Convert to fraction form
    554,146.25/831,219.38 = 254,878.54/x
  3. Step 3: Cross multiply
    554,146.25x = 831,219.38 × 254,878.54
  4. Step 4: Simplify right side
    554,146.25x = 211,859,981,994.11
  5. Step 5: Solve for x
    x = 211,859,981,994.11/554,146.25
  6. Step 6: Final answer
    x = 382,317.81

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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.