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Finding the Fourth Proportional to 318,804.26, 439,963.47 and 182,876.54

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Solution

The fourth proportional to 318,804.26, 439,963.47 and 182,876.54 is: 252,377.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,804.26 : 439,963.47 = 182,876.54 : x
  2. Step 2: Convert to fraction form
    318,804.26/439,963.47 = 182,876.54/x
  3. Step 3: Cross multiply
    318,804.26x = 439,963.47 × 182,876.54
  4. Step 4: Simplify right side
    318,804.26x = 80,458,994,920.18
  5. Step 5: Solve for x
    x = 80,458,994,920.18/318,804.26
  6. Step 6: Final answer
    x = 252,377.42

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1.5x scale

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.