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Finding the Third Proportional to 878,220 and 1,889,592

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Solution

The third proportional to 878,220 and 1,889,592 is: 4,065,675.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,220 : 1,889,592 = 1,889,592 : x
  2. Step 2: Convert to fraction form
    878,220/1,889,592 = 1,889,592/x
  3. Step 3: Cross multiply
    878,220x = 1,889,592 × 1,889,592
  4. Step 4: Simplify right side
    878,220x = 3,570,557,926,464
  5. Step 5: Solve for x
    x = 3,570,557,926,464/878,220
  6. Step 6: Final answer
    x = 4,065,675.94

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.