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Finding the Fourth Proportional to 552,072,872.40, 827,405,969.40 and 293,412,008.40

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Solution

The fourth proportional to 552,072,872.40, 827,405,969.40 and 293,412,008.40 is: 439,744,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,072,872.40 : 827,405,969.40 = 293,412,008.40 : x
  2. Step 2: Convert to fraction form
    552,072,872.40/827,405,969.40 = 293,412,008.40/x
  3. Step 3: Cross multiply
    552,072,872.40x = 827,405,969.40 × 293,412,008.40
  4. Step 4: Simplify right side
    552,072,872.40x = 242,770,847,243,802,912
  5. Step 5: Solve for x
    x = 242,770,847,243,802,912/552,072,872.40
  6. Step 6: Final answer
    x = 439,744,206.57

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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.