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Finding the Third Proportional to 176,968 and 388,928

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Solution

The third proportional to 176,968 and 388,928 is: 854,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,968 : 388,928 = 388,928 : x
  2. Step 2: Convert to fraction form
    176,968/388,928 = 388,928/x
  3. Step 3: Cross multiply
    176,968x = 388,928 × 388,928
  4. Step 4: Simplify right side
    176,968x = 151,264,989,184
  5. Step 5: Solve for x
    x = 151,264,989,184/176,968
  6. Step 6: Final answer
    x = 854,758.99

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.