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Finding the Fourth Proportional to 518,993.04, 778,422.60 and 164,042.94

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Solution

The fourth proportional to 518,993.04, 778,422.60 and 164,042.94 is: 246,043.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,993.04 : 778,422.60 = 164,042.94 : x
  2. Step 2: Convert to fraction form
    518,993.04/778,422.60 = 164,042.94/x
  3. Step 3: Cross multiply
    518,993.04x = 778,422.60 × 164,042.94
  4. Step 4: Simplify right side
    518,993.04x = 127,694,731,866.44
  5. Step 5: Solve for x
    x = 127,694,731,866.44/518,993.04
  6. Step 6: Final answer
    x = 246,043.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.