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Finding the Third Proportional to 911,011.50 and 1,999,170

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Solution

The third proportional to 911,011.50 and 1,999,170 is: 4,387,080.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,011.50 : 1,999,170 = 1,999,170 : x
  2. Step 2: Convert to fraction form
    911,011.50/1,999,170 = 1,999,170/x
  3. Step 3: Cross multiply
    911,011.50x = 1,999,170 × 1,999,170
  4. Step 4: Simplify right side
    911,011.50x = 3,996,680,688,900
  5. Step 5: Solve for x
    x = 3,996,680,688,900/911,011.50
  6. Step 6: Final answer
    x = 4,387,080.39

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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.