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Finding the Fourth Proportional to 576,668.60, 795,799.49 and 318,563.28

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Solution

The fourth proportional to 576,668.60, 795,799.49 and 318,563.28 is: 439,615.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,668.60 : 795,799.49 = 318,563.28 : x
  2. Step 2: Convert to fraction form
    576,668.60/795,799.49 = 318,563.28/x
  3. Step 3: Cross multiply
    576,668.60x = 795,799.49 × 318,563.28
  4. Step 4: Simplify right side
    576,668.60x = 253,512,494,163.91
  5. Step 5: Solve for x
    x = 253,512,494,163.91/576,668.60
  6. Step 6: Final answer
    x = 439,615.57

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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.