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Finding the Fourth Proportional to 605,223.45, 907,954.79 and 178,766.69

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Solution

The fourth proportional to 605,223.45, 907,954.79 and 178,766.69 is: 268,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,223.45 : 907,954.79 = 178,766.69 : x
  2. Step 2: Convert to fraction form
    605,223.45/907,954.79 = 178,766.69/x
  3. Step 3: Cross multiply
    605,223.45x = 907,954.79 × 178,766.69
  4. Step 4: Simplify right side
    605,223.45x = 162,312,067,044.34
  5. Step 5: Solve for x
    x = 162,312,067,044.34/605,223.45
  6. Step 6: Final answer
    x = 268,185.36

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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.