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Finding the Fourth Proportional to 416,485.99, 624,728.98 and 100,942.89

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Solution

The fourth proportional to 416,485.99, 624,728.98 and 100,942.89 is: 151,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,485.99 : 624,728.98 = 100,942.89 : x
  2. Step 2: Convert to fraction form
    416,485.99/624,728.98 = 100,942.89/x
  3. Step 3: Cross multiply
    416,485.99x = 624,728.98 × 100,942.89
  4. Step 4: Simplify right side
    416,485.99x = 63,061,948,707.95
  5. Step 5: Solve for x
    x = 63,061,948,707.95/416,485.99
  6. Step 6: Final answer
    x = 151,414.33

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1.5x scale

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.