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Finding the Fourth Proportional to 619,033.68, 928,550.82 and 408,622.44

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Solution

The fourth proportional to 619,033.68, 928,550.82 and 408,622.44 is: 612,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,033.68 : 928,550.82 = 408,622.44 : x
  2. Step 2: Convert to fraction form
    619,033.68/928,550.82 = 408,622.44/x
  3. Step 3: Cross multiply
    619,033.68x = 928,550.82 × 408,622.44
  4. Step 4: Simplify right side
    619,033.68x = 379,426,701,732.40
  5. Step 5: Solve for x
    x = 379,426,701,732.40/619,033.68
  6. Step 6: Final answer
    x = 612,933.86

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1.5x scale

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.