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Finding the Third Proportional to 905,289,901.88 and 1,980,048,975.75

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Solution

The third proportional to 905,289,901.88 and 1,980,048,975.75 is: 4,330,760,719.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,289,901.88 : 1,980,048,975.75 = 1,980,048,975.75 : x
  2. Step 2: Convert to fraction form
    905,289,901.88/1,980,048,975.75 = 1,980,048,975.75/x
  3. Step 3: Cross multiply
    905,289,901.88x = 1,980,048,975.75 × 1,980,048,975.75
  4. Step 4: Simplify right side
    905,289,901.88x = 3,920,593,946,368,624,128
  5. Step 5: Solve for x
    x = 3,920,593,946,368,624,128/905,289,901.88
  6. Step 6: Final answer
    x = 4,330,760,719.02

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.