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Finding the Third Proportional to 190,019 and 403,359

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Solution

The third proportional to 190,019 and 403,359 is: 856,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,019 : 403,359 = 403,359 : x
  2. Step 2: Convert to fraction form
    190,019/403,359 = 403,359/x
  3. Step 3: Cross multiply
    190,019x = 403,359 × 403,359
  4. Step 4: Simplify right side
    190,019x = 162,698,482,881
  5. Step 5: Solve for x
    x = 162,698,482,881/190,019
  6. Step 6: Final answer
    x = 856,222.18

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.