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Finding the Fourth Proportional to 405,706.73, 608,858.78 and 192,475.04

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Solution

The fourth proportional to 405,706.73, 608,858.78 and 192,475.04 is: 288,854.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,706.73 : 608,858.78 = 192,475.04 : x
  2. Step 2: Convert to fraction form
    405,706.73/608,858.78 = 192,475.04/x
  3. Step 3: Cross multiply
    405,706.73x = 608,858.78 × 192,475.04
  4. Step 4: Simplify right side
    405,706.73x = 117,190,114,028.18
  5. Step 5: Solve for x
    x = 117,190,114,028.18/405,706.73
  6. Step 6: Final answer
    x = 288,854.26

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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.