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Finding the Fourth Proportional to 576,649.68, 795,773.40 and 318,544.39

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Solution

The fourth proportional to 576,649.68, 795,773.40 and 318,544.39 is: 439,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,649.68 : 795,773.40 = 318,544.39 : x
  2. Step 2: Convert to fraction form
    576,649.68/795,773.40 = 318,544.39/x
  3. Step 3: Cross multiply
    576,649.68x = 795,773.40 × 318,544.39
  4. Step 4: Simplify right side
    576,649.68x = 253,489,147,605.18
  5. Step 5: Solve for x
    x = 253,489,147,605.18/576,649.68
  6. Step 6: Final answer
    x = 439,589.50

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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.