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Finding the Third Proportional to 1,381,924.55 and 2,990,203.59

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Solution

The third proportional to 1,381,924.55 and 2,990,203.59 is: 6,470,192.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,924.55 : 2,990,203.59 = 2,990,203.59 : x
  2. Step 2: Convert to fraction form
    1,381,924.55/2,990,203.59 = 2,990,203.59/x
  3. Step 3: Cross multiply
    1,381,924.55x = 2,990,203.59 × 2,990,203.59
  4. Step 4: Simplify right side
    1,381,924.55x = 8,941,317,532,075.41
  5. Step 5: Solve for x
    x = 8,941,317,532,075.41/1,381,924.55
  6. Step 6: Final answer
    x = 6,470,192.28

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.