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Finding the Third Proportional to 268,152 and 393,462

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Solution

The third proportional to 268,152 and 393,462 is: 577,330.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,152 : 393,462 = 393,462 : x
  2. Step 2: Convert to fraction form
    268,152/393,462 = 393,462/x
  3. Step 3: Cross multiply
    268,152x = 393,462 × 393,462
  4. Step 4: Simplify right side
    268,152x = 154,812,345,444
  5. Step 5: Solve for x
    x = 154,812,345,444/268,152
  6. Step 6: Final answer
    x = 577,330.56

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.