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Finding the Fourth Proportional to 574,754.48, 793,185.64 and 320,105.66

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Solution

The fourth proportional to 574,754.48, 793,185.64 and 320,105.66 is: 441,759.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,754.48 : 793,185.64 = 320,105.66 : x
  2. Step 2: Convert to fraction form
    574,754.48/793,185.64 = 320,105.66/x
  3. Step 3: Cross multiply
    574,754.48x = 793,185.64 × 320,105.66
  4. Step 4: Simplify right side
    574,754.48x = 253,903,213,977.42
  5. Step 5: Solve for x
    x = 253,903,213,977.42/574,754.48
  6. Step 6: Final answer
    x = 441,759.44

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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.