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Finding the Fourth Proportional to 412,324.80, 618,487.20 and 246,436.80

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Solution

The fourth proportional to 412,324.80, 618,487.20 and 246,436.80 is: 369,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,324.80 : 618,487.20 = 246,436.80 : x
  2. Step 2: Convert to fraction form
    412,324.80/618,487.20 = 246,436.80/x
  3. Step 3: Cross multiply
    412,324.80x = 618,487.20 × 246,436.80
  4. Step 4: Simplify right side
    412,324.80x = 152,418,006,408.96
  5. Step 5: Solve for x
    x = 152,418,006,408.96/412,324.80
  6. Step 6: Final answer
    x = 369,655.20

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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.