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Finding the Fourth Proportional to 405,673.83, 608,809.73 and 192,442.41

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Solution

The fourth proportional to 405,673.83, 608,809.73 and 192,442.41 is: 288,805.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,673.83 : 608,809.73 = 192,442.41 : x
  2. Step 2: Convert to fraction form
    405,673.83/608,809.73 = 192,442.41/x
  3. Step 3: Cross multiply
    405,673.83x = 608,809.73 × 192,442.41
  4. Step 4: Simplify right side
    405,673.83x = 117,160,810,710.44
  5. Step 5: Solve for x
    x = 117,160,810,710.44/405,673.83
  6. Step 6: Final answer
    x = 288,805.44

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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.