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Finding the Third Proportional to 368,426 and 550,364

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Solution

The third proportional to 368,426 and 550,364 is: 822,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,426 : 550,364 = 550,364 : x
  2. Step 2: Convert to fraction form
    368,426/550,364 = 550,364/x
  3. Step 3: Cross multiply
    368,426x = 550,364 × 550,364
  4. Step 4: Simplify right side
    368,426x = 302,900,532,496
  5. Step 5: Solve for x
    x = 302,900,532,496/368,426
  6. Step 6: Final answer
    x = 822,147.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.