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Finding the Fourth Proportional to 468,350.47, 646,339.30 and 287,027.36

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Solution

The fourth proportional to 468,350.47, 646,339.30 and 287,027.36 is: 396,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,350.47 : 646,339.30 = 287,027.36 : x
  2. Step 2: Convert to fraction form
    468,350.47/646,339.30 = 287,027.36/x
  3. Step 3: Cross multiply
    468,350.47x = 646,339.30 × 287,027.36
  4. Step 4: Simplify right side
    468,350.47x = 185,517,060,879.58
  5. Step 5: Solve for x
    x = 185,517,060,879.58/468,350.47
  6. Step 6: Final answer
    x = 396,107.35

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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.