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Finding the Fourth Proportional to 576,605.42, 795,716.88 and 321,965.72

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Solution

The fourth proportional to 576,605.42, 795,716.88 and 321,965.72 is: 444,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,605.42 : 795,716.88 = 321,965.72 : x
  2. Step 2: Convert to fraction form
    576,605.42/795,716.88 = 321,965.72/x
  3. Step 3: Cross multiply
    576,605.42x = 795,716.88 × 321,965.72
  4. Step 4: Simplify right side
    576,605.42x = 256,193,558,185.35
  5. Step 5: Solve for x
    x = 256,193,558,185.35/576,605.42
  6. Step 6: Final answer
    x = 444,313.48

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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.