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Finding the Third Proportional to 190,528 and 409,600

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Solution

The third proportional to 190,528 and 409,600 is: 880,564.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,528 : 409,600 = 409,600 : x
  2. Step 2: Convert to fraction form
    190,528/409,600 = 409,600/x
  3. Step 3: Cross multiply
    190,528x = 409,600 × 409,600
  4. Step 4: Simplify right side
    190,528x = 167,772,160,000
  5. Step 5: Solve for x
    x = 167,772,160,000/190,528
  6. Step 6: Final answer
    x = 880,564.33

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.