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Finding the Fourth Proportional to 576,149.12, 795,085.82 and 318,026.12

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Solution

The fourth proportional to 576,149.12, 795,085.82 and 318,026.12 is: 438,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,149.12 : 795,085.82 = 318,026.12 : x
  2. Step 2: Convert to fraction form
    576,149.12/795,085.82 = 318,026.12/x
  3. Step 3: Cross multiply
    576,149.12x = 795,085.82 × 318,026.12
  4. Step 4: Simplify right side
    576,149.12x = 252,858,061,184.40
  5. Step 5: Solve for x
    x = 252,858,061,184.40/576,149.12
  6. Step 6: Final answer
    x = 438,876.07

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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.