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Finding the Fourth Proportional to 412,431.70, 618,694.28 and 370,051.41

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Solution

The fourth proportional to 412,431.70, 618,694.28 and 370,051.41 is: 555,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,431.70 : 618,694.28 = 370,051.41 : x
  2. Step 2: Convert to fraction form
    412,431.70/618,694.28 = 370,051.41/x
  3. Step 3: Cross multiply
    412,431.70x = 618,694.28 × 370,051.41
  4. Step 4: Simplify right side
    412,431.70x = 228,948,690,672.94
  5. Step 5: Solve for x
    x = 228,948,690,672.94/412,431.70
  6. Step 6: Final answer
    x = 555,119.04

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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.