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Finding the Third Proportional to 247,934.50 and 393,124

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Solution

The third proportional to 247,934.50 and 393,124 is: 623,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,934.50 : 393,124 = 393,124 : x
  2. Step 2: Convert to fraction form
    247,934.50/393,124 = 393,124/x
  3. Step 3: Cross multiply
    247,934.50x = 393,124 × 393,124
  4. Step 4: Simplify right side
    247,934.50x = 154,546,479,376
  5. Step 5: Solve for x
    x = 154,546,479,376/247,934.50
  6. Step 6: Final answer
    x = 623,335.92

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.