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Finding the Third Proportional to 666,719 and 1,437,688

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Solution

The third proportional to 666,719 and 1,437,688 is: 3,100,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,719 : 1,437,688 = 1,437,688 : x
  2. Step 2: Convert to fraction form
    666,719/1,437,688 = 1,437,688/x
  3. Step 3: Cross multiply
    666,719x = 1,437,688 × 1,437,688
  4. Step 4: Simplify right side
    666,719x = 2,066,946,785,344
  5. Step 5: Solve for x
    x = 2,066,946,785,344/666,719
  6. Step 6: Final answer
    x = 3,100,176.81

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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.