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Finding the Fourth Proportional to 462,216.80, 693,555.60 and 262,690.40

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Solution

The fourth proportional to 462,216.80, 693,555.60 and 262,690.40 is: 394,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,216.80 : 693,555.60 = 262,690.40 : x
  2. Step 2: Convert to fraction form
    462,216.80/693,555.60 = 262,690.40/x
  3. Step 3: Cross multiply
    462,216.80x = 693,555.60 × 262,690.40
  4. Step 4: Simplify right side
    462,216.80x = 182,190,397,986.24
  5. Step 5: Solve for x
    x = 182,190,397,986.24/462,216.80
  6. Step 6: Final answer
    x = 394,166.54

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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.