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Finding the Fourth Proportional to 576,286.60, 795,268.34 and 318,165.64

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Solution

The fourth proportional to 576,286.60, 795,268.34 and 318,165.64 is: 439,064.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,286.60 : 795,268.34 = 318,165.64 : x
  2. Step 2: Convert to fraction form
    576,286.60/795,268.34 = 318,165.64/x
  3. Step 3: Cross multiply
    576,286.60x = 795,268.34 × 318,165.64
  4. Step 4: Simplify right side
    576,286.60x = 253,027,060,367.84
  5. Step 5: Solve for x
    x = 253,027,060,367.84/576,286.60
  6. Step 6: Final answer
    x = 439,064.63

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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.