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Finding the Third Proportional to 216,256.50 and 464,478.75

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Solution

The third proportional to 216,256.50 and 464,478.75 is: 997,613.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,256.50 : 464,478.75 = 464,478.75 : x
  2. Step 2: Convert to fraction form
    216,256.50/464,478.75 = 464,478.75/x
  3. Step 3: Cross multiply
    216,256.50x = 464,478.75 × 464,478.75
  4. Step 4: Simplify right side
    216,256.50x = 215,740,509,201.56
  5. Step 5: Solve for x
    x = 215,740,509,201.56/216,256.50
  6. Step 6: Final answer
    x = 997,613.99

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.