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Finding the Fourth Proportional to 683,672.40, 1,025,201.40 and 262,808.40

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Solution

The fourth proportional to 683,672.40, 1,025,201.40 and 262,808.40 is: 394,094.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,672.40 : 1,025,201.40 = 262,808.40 : x
  2. Step 2: Convert to fraction form
    683,672.40/1,025,201.40 = 262,808.40/x
  3. Step 3: Cross multiply
    683,672.40x = 1,025,201.40 × 262,808.40
  4. Step 4: Simplify right side
    683,672.40x = 269,431,539,611.76
  5. Step 5: Solve for x
    x = 269,431,539,611.76/683,672.40
  6. Step 6: Final answer
    x = 394,094.51

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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.