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Finding the Third Proportional to 176,521 and 388,673

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Solution

The third proportional to 176,521 and 388,673 is: 855,800.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,521 : 388,673 = 388,673 : x
  2. Step 2: Convert to fraction form
    176,521/388,673 = 388,673/x
  3. Step 3: Cross multiply
    176,521x = 388,673 × 388,673
  4. Step 4: Simplify right side
    176,521x = 151,066,700,929
  5. Step 5: Solve for x
    x = 151,066,700,929/176,521
  6. Step 6: Final answer
    x = 855,800.17

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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.