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Finding the Third Proportional to 469.50 and 656

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Solution

The third proportional to 469.50 and 656 is: 916.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.50 : 656 = 656 : x
  2. Step 2: Convert to fraction form
    469.50/656 = 656/x
  3. Step 3: Cross multiply
    469.50x = 656 × 656
  4. Step 4: Simplify right side
    469.50x = 430,336
  5. Step 5: Solve for x
    x = 430,336/469.50
  6. Step 6: Final answer
    x = 916.58

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.