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Finding the Fourth Proportional to 662,604.70, 914,369.54 and 404,912.54

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Solution

The fourth proportional to 662,604.70, 914,369.54 and 404,912.54 is: 558,764.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,604.70 : 914,369.54 = 404,912.54 : x
  2. Step 2: Convert to fraction form
    662,604.70/914,369.54 = 404,912.54/x
  3. Step 3: Cross multiply
    662,604.70x = 914,369.54 × 404,912.54
  4. Step 4: Simplify right side
    662,604.70x = 370,239,692,940.03
  5. Step 5: Solve for x
    x = 370,239,692,940.03/662,604.70
  6. Step 6: Final answer
    x = 558,764.06

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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.