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Finding the Fourth Proportional to 576,218.82, 795,161.13 and 318,090.24

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Solution

The fourth proportional to 576,218.82, 795,161.13 and 318,090.24 is: 438,953.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,218.82 : 795,161.13 = 318,090.24 : x
  2. Step 2: Convert to fraction form
    576,218.82/795,161.13 = 318,090.24/x
  3. Step 3: Cross multiply
    576,218.82x = 795,161.13 × 318,090.24
  4. Step 4: Simplify right side
    576,218.82x = 252,932,994,680.37
  5. Step 5: Solve for x
    x = 252,932,994,680.37/576,218.82
  6. Step 6: Final answer
    x = 438,953.03

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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.