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Finding the Fourth Proportional to 451,716.65, 623,367.28 and 279,600.33

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Solution

The fourth proportional to 451,716.65, 623,367.28 and 279,600.33 is: 385,847.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,716.65 : 623,367.28 = 279,600.33 : x
  2. Step 2: Convert to fraction form
    451,716.65/623,367.28 = 279,600.33/x
  3. Step 3: Cross multiply
    451,716.65x = 623,367.28 × 279,600.33
  4. Step 4: Simplify right side
    451,716.65x = 174,293,695,801.20
  5. Step 5: Solve for x
    x = 174,293,695,801.20/451,716.65
  6. Step 6: Final answer
    x = 385,847.41

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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.