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Finding the Fourth Proportional to 965,920.70, 1,449,075.45 and 809,234.30

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Solution

The fourth proportional to 965,920.70, 1,449,075.45 and 809,234.30 is: 1,214,014.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,920.70 : 1,449,075.45 = 809,234.30 : x
  2. Step 2: Convert to fraction form
    965,920.70/1,449,075.45 = 809,234.30/x
  3. Step 3: Cross multiply
    965,920.70x = 1,449,075.45 × 809,234.30
  4. Step 4: Simplify right side
    965,920.70x = 1,172,641,557,427.94
  5. Step 5: Solve for x
    x = 1,172,641,557,427.94/965,920.70
  6. Step 6: Final answer
    x = 1,214,014.32

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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.