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Finding the Third Proportional to 874,142 and 1,319,254

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Solution

The third proportional to 874,142 and 1,319,254 is: 1,991,016.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,142 : 1,319,254 = 1,319,254 : x
  2. Step 2: Convert to fraction form
    874,142/1,319,254 = 1,319,254/x
  3. Step 3: Cross multiply
    874,142x = 1,319,254 × 1,319,254
  4. Step 4: Simplify right side
    874,142x = 1,740,431,116,516
  5. Step 5: Solve for x
    x = 1,740,431,116,516/874,142
  6. Step 6: Final answer
    x = 1,991,016.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.