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Finding the Fourth Proportional to 1,255,978.75, 1,733,234.41 and 683,006.62

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Solution

The fourth proportional to 1,255,978.75, 1,733,234.41 and 683,006.62 is: 942,540.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,978.75 : 1,733,234.41 = 683,006.62 : x
  2. Step 2: Convert to fraction form
    1,255,978.75/1,733,234.41 = 683,006.62/x
  3. Step 3: Cross multiply
    1,255,978.75x = 1,733,234.41 × 683,006.62
  4. Step 4: Simplify right side
    1,255,978.75x = 1,183,810,576,041.79
  5. Step 5: Solve for x
    x = 1,183,810,576,041.79/1,255,978.75
  6. Step 6: Final answer
    x = 942,540.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.