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Finding the Third Proportional to 426,733.50 and 641,235

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Solution

The third proportional to 426,733.50 and 641,235 is: 963,557.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,733.50 : 641,235 = 641,235 : x
  2. Step 2: Convert to fraction form
    426,733.50/641,235 = 641,235/x
  3. Step 3: Cross multiply
    426,733.50x = 641,235 × 641,235
  4. Step 4: Simplify right side
    426,733.50x = 411,182,325,225
  5. Step 5: Solve for x
    x = 411,182,325,225/426,733.50
  6. Step 6: Final answer
    x = 963,557.64

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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.