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Finding the Fourth Proportional to 405,801.41, 608,525.78 and 192,630.41

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Solution

The fourth proportional to 405,801.41, 608,525.78 and 192,630.41 is: 288,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,801.41 : 608,525.78 = 192,630.41 : x
  2. Step 2: Convert to fraction form
    405,801.41/608,525.78 = 192,630.41/x
  3. Step 3: Cross multiply
    405,801.41x = 608,525.78 × 192,630.41
  4. Step 4: Simplify right side
    405,801.41x = 117,220,566,491.19
  5. Step 5: Solve for x
    x = 117,220,566,491.19/405,801.41
  6. Step 6: Final answer
    x = 288,861.90

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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.