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Finding the Third Proportional to 1,366,561.76 and 2,990,537.40

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Solution

The third proportional to 1,366,561.76 and 2,990,537.40 is: 6,544,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366,561.76 : 2,990,537.40 = 2,990,537.40 : x
  2. Step 2: Convert to fraction form
    1,366,561.76/2,990,537.40 = 2,990,537.40/x
  3. Step 3: Cross multiply
    1,366,561.76x = 2,990,537.40 × 2,990,537.40
  4. Step 4: Simplify right side
    1,366,561.76x = 8,943,313,954,817.20
  5. Step 5: Solve for x
    x = 8,943,313,954,817.20/1,366,561.76
  6. Step 6: Final answer
    x = 6,544,390.62

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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.