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Finding the Fourth Proportional to 595,906.20, 893,859.30 and 427,069.80

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Solution

The fourth proportional to 595,906.20, 893,859.30 and 427,069.80 is: 640,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,906.20 : 893,859.30 = 427,069.80 : x
  2. Step 2: Convert to fraction form
    595,906.20/893,859.30 = 427,069.80/x
  3. Step 3: Cross multiply
    595,906.20x = 893,859.30 × 427,069.80
  4. Step 4: Simplify right side
    595,906.20x = 381,740,312,479.14
  5. Step 5: Solve for x
    x = 381,740,312,479.14/595,906.20
  6. Step 6: Final answer
    x = 640,604.70

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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.