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Finding the Fourth Proportional to 808,216.70, 1,214,657.85 and 794,219.90

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Solution

The fourth proportional to 808,216.70, 1,214,657.85 and 794,219.90 is: 1,193,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,216.70 : 1,214,657.85 = 794,219.90 : x
  2. Step 2: Convert to fraction form
    808,216.70/1,214,657.85 = 794,219.90/x
  3. Step 3: Cross multiply
    808,216.70x = 1,214,657.85 × 794,219.90
  4. Step 4: Simplify right side
    808,216.70x = 964,705,436,161.22
  5. Step 5: Solve for x
    x = 964,705,436,161.22/808,216.70
  6. Step 6: Final answer
    x = 1,193,622.25

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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.