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Finding the Fourth Proportional to 298,950,611.40, 448,425,917.10 and 222,423,107.40

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Solution

The fourth proportional to 298,950,611.40, 448,425,917.10 and 222,423,107.40 is: 333,634,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,950,611.40 : 448,425,917.10 = 222,423,107.40 : x
  2. Step 2: Convert to fraction form
    298,950,611.40/448,425,917.10 = 222,423,107.40/x
  3. Step 3: Cross multiply
    298,950,611.40x = 448,425,917.10 × 222,423,107.40
  4. Step 4: Simplify right side
    298,950,611.40x = 99,740,285,920,076,800
  5. Step 5: Solve for x
    x = 99,740,285,920,076,800/298,950,611.40
  6. Step 6: Final answer
    x = 333,634,661.10

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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.