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Finding the Fourth Proportional to 404,190,611.70, 606,285,917.55 and 145,414,274.10

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Solution

The fourth proportional to 404,190,611.70, 606,285,917.55 and 145,414,274.10 is: 218,121,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,190,611.70 : 606,285,917.55 = 145,414,274.10 : x
  2. Step 2: Convert to fraction form
    404,190,611.70/606,285,917.55 = 145,414,274.10/x
  3. Step 3: Cross multiply
    404,190,611.70x = 606,285,917.55 × 145,414,274.10
  4. Step 4: Simplify right side
    404,190,611.70x = 88,162,626,597,585,696
  5. Step 5: Solve for x
    x = 88,162,626,597,585,696/404,190,611.70
  6. Step 6: Final answer
    x = 218,121,411.15

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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.