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Finding the Third Proportional to 354,600 and 531,900

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Solution

The third proportional to 354,600 and 531,900 is: 797,850

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,600 : 531,900 = 531,900 : x
  2. Step 2: Convert to fraction form
    354,600/531,900 = 531,900/x
  3. Step 3: Cross multiply
    354,600x = 531,900 × 531,900
  4. Step 4: Simplify right side
    354,600x = 282,917,610,000
  5. Step 5: Solve for x
    x = 282,917,610,000/354,600
  6. Step 6: Final answer
    x = 797,850

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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.