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Finding the Fourth Proportional to 405,674.83, 608,811.23 and 192,443.41

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Solution

The fourth proportional to 405,674.83, 608,811.23 and 192,443.41 is: 288,806.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,674.83 : 608,811.23 = 192,443.41 : x
  2. Step 2: Convert to fraction form
    405,674.83/608,811.23 = 192,443.41/x
  3. Step 3: Cross multiply
    405,674.83x = 608,811.23 × 192,443.41
  4. Step 4: Simplify right side
    405,674.83x = 117,161,708,185.28
  5. Step 5: Solve for x
    x = 117,161,708,185.28/405,674.83
  6. Step 6: Final answer
    x = 288,806.94

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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.