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Finding the Third Proportional to 916,278 and 1,995,189

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Solution

The third proportional to 916,278 and 1,995,189 is: 4,344,510.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,278 : 1,995,189 = 1,995,189 : x
  2. Step 2: Convert to fraction form
    916,278/1,995,189 = 1,995,189/x
  3. Step 3: Cross multiply
    916,278x = 1,995,189 × 1,995,189
  4. Step 4: Simplify right side
    916,278x = 3,980,779,145,721
  5. Step 5: Solve for x
    x = 3,980,779,145,721/916,278
  6. Step 6: Final answer
    x = 4,344,510.23

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.