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Finding the Third Proportional to 316,654.50 and 473,400

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Solution

The third proportional to 316,654.50 and 473,400 is: 707,735.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,654.50 : 473,400 = 473,400 : x
  2. Step 2: Convert to fraction form
    316,654.50/473,400 = 473,400/x
  3. Step 3: Cross multiply
    316,654.50x = 473,400 × 473,400
  4. Step 4: Simplify right side
    316,654.50x = 224,107,560,000
  5. Step 5: Solve for x
    x = 224,107,560,000/316,654.50
  6. Step 6: Final answer
    x = 707,735.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.