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Finding the Third Proportional to 1,108,940.63 and 1,668,331.69

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Solution

The third proportional to 1,108,940.63 and 1,668,331.69 is: 2,509,900.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,940.63 : 1,668,331.69 = 1,668,331.69 : x
  2. Step 2: Convert to fraction form
    1,108,940.63/1,668,331.69 = 1,668,331.69/x
  3. Step 3: Cross multiply
    1,108,940.63x = 1,668,331.69 × 1,668,331.69
  4. Step 4: Simplify right side
    1,108,940.63x = 2,783,330,619,516.60
  5. Step 5: Solve for x
    x = 2,783,330,619,516.60/1,108,940.63
  6. Step 6: Final answer
    x = 2,509,900.49

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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.