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Finding the Third Proportional to 184,712 and 398,896

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Solution

The third proportional to 184,712 and 398,896 is: 861,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,712 : 398,896 = 398,896 : x
  2. Step 2: Convert to fraction form
    184,712/398,896 = 398,896/x
  3. Step 3: Cross multiply
    184,712x = 398,896 × 398,896
  4. Step 4: Simplify right side
    184,712x = 159,118,018,816
  5. Step 5: Solve for x
    x = 159,118,018,816/184,712
  6. Step 6: Final answer
    x = 861,438.45

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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.