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Finding the Fourth Proportional to 647,771.56, 893,926.14 and 361,310.04

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Solution

The fourth proportional to 647,771.56, 893,926.14 and 361,310.04 is: 498,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,771.56 : 893,926.14 = 361,310.04 : x
  2. Step 2: Convert to fraction form
    647,771.56/893,926.14 = 361,310.04/x
  3. Step 3: Cross multiply
    647,771.56x = 893,926.14 × 361,310.04
  4. Step 4: Simplify right side
    647,771.56x = 322,984,489,400.45
  5. Step 5: Solve for x
    x = 322,984,489,400.45/647,771.56
  6. Step 6: Final answer
    x = 498,608.63

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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.