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Finding the Fourth Proportional to 873,999.90, 1,310,999.85 and 795,203.10

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Solution

The fourth proportional to 873,999.90, 1,310,999.85 and 795,203.10 is: 1,192,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,999.90 : 1,310,999.85 = 795,203.10 : x
  2. Step 2: Convert to fraction form
    873,999.90/1,310,999.85 = 795,203.10/x
  3. Step 3: Cross multiply
    873,999.90x = 1,310,999.85 × 795,203.10
  4. Step 4: Simplify right side
    873,999.90x = 1,042,511,144,819.54
  5. Step 5: Solve for x
    x = 1,042,511,144,819.54/873,999.90
  6. Step 6: Final answer
    x = 1,192,804.65

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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.