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Finding the Fourth Proportional to 605,622.33, 908,436.94 and 156,312.48

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Solution

The fourth proportional to 605,622.33, 908,436.94 and 156,312.48 is: 234,469.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,622.33 : 908,436.94 = 156,312.48 : x
  2. Step 2: Convert to fraction form
    605,622.33/908,436.94 = 156,312.48/x
  3. Step 3: Cross multiply
    605,622.33x = 908,436.94 × 156,312.48
  4. Step 4: Simplify right side
    605,622.33x = 142,000,032,504.54
  5. Step 5: Solve for x
    x = 142,000,032,504.54/605,622.33
  6. Step 6: Final answer
    x = 234,469.61

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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.