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Finding the Fourth Proportional to 576,135.48, 795,067.02 and 318,012.51

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Solution

The fourth proportional to 576,135.48, 795,067.02 and 318,012.51 is: 438,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,135.48 : 795,067.02 = 318,012.51 : x
  2. Step 2: Convert to fraction form
    576,135.48/795,067.02 = 318,012.51/x
  3. Step 3: Cross multiply
    576,135.48x = 795,067.02 × 318,012.51
  4. Step 4: Simplify right side
    576,135.48x = 252,841,258,648.42
  5. Step 5: Solve for x
    x = 252,841,258,648.42/576,135.48
  6. Step 6: Final answer
    x = 438,857.30

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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.