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Finding the Third Proportional to 235,312 and 353,505

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Solution

The third proportional to 235,312 and 353,505 is: 531,064.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,312 : 353,505 = 353,505 : x
  2. Step 2: Convert to fraction form
    235,312/353,505 = 353,505/x
  3. Step 3: Cross multiply
    235,312x = 353,505 × 353,505
  4. Step 4: Simplify right side
    235,312x = 124,965,785,025
  5. Step 5: Solve for x
    x = 124,965,785,025/235,312
  6. Step 6: Final answer
    x = 531,064.23

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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.