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Finding the Fourth Proportional to 262,314.40, 394,346.40 and 223,823.20

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Solution

The fourth proportional to 262,314.40, 394,346.40 and 223,823.20 is: 336,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,314.40 : 394,346.40 = 223,823.20 : x
  2. Step 2: Convert to fraction form
    262,314.40/394,346.40 = 223,823.20/x
  3. Step 3: Cross multiply
    262,314.40x = 394,346.40 × 223,823.20
  4. Step 4: Simplify right side
    262,314.40x = 88,263,873,156.48
  5. Step 5: Solve for x
    x = 88,263,873,156.48/262,314.40
  6. Step 6: Final answer
    x = 336,481.23

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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.