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Finding the Fourth Proportional to 412,301.80, 618,366.30 and 202,090.60

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Solution

The fourth proportional to 412,301.80, 618,366.30 and 202,090.60 is: 303,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,301.80 : 618,366.30 = 202,090.60 : x
  2. Step 2: Convert to fraction form
    412,301.80/618,366.30 = 202,090.60/x
  3. Step 3: Cross multiply
    412,301.80x = 618,366.30 × 202,090.60
  4. Step 4: Simplify right side
    412,301.80x = 124,966,016,586.78
  5. Step 5: Solve for x
    x = 124,966,016,586.78/412,301.80
  6. Step 6: Final answer
    x = 303,093.55

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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.