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Finding the Fourth Proportional to 574,878.44, 793,356.78 and 320,229.80

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Solution

The fourth proportional to 574,878.44, 793,356.78 and 320,229.80 is: 441,930.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,878.44 : 793,356.78 = 320,229.80 : x
  2. Step 2: Convert to fraction form
    574,878.44/793,356.78 = 320,229.80/x
  3. Step 3: Cross multiply
    574,878.44x = 793,356.78 × 320,229.80
  4. Step 4: Simplify right side
    574,878.44x = 254,056,482,988.04
  5. Step 5: Solve for x
    x = 254,056,482,988.04/574,878.44
  6. Step 6: Final answer
    x = 441,930.79

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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.