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Finding the Fourth Proportional to 574,729.45, 793,151.25 and 320,080.64

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Solution

The fourth proportional to 574,729.45, 793,151.25 and 320,080.64 is: 441,724.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,729.45 : 793,151.25 = 320,080.64 : x
  2. Step 2: Convert to fraction form
    574,729.45/793,151.25 = 320,080.64/x
  3. Step 3: Cross multiply
    574,729.45x = 793,151.25 × 320,080.64
  4. Step 4: Simplify right side
    574,729.45x = 253,872,359,912.44
  5. Step 5: Solve for x
    x = 253,872,359,912.44/574,729.45
  6. Step 6: Final answer
    x = 441,724.99

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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.