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Finding the Third Proportional to 294.94 and 655.69

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Solution

The third proportional to 294.94 and 655.69 is: 1,457.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.94 : 655.69 = 655.69 : x
  2. Step 2: Convert to fraction form
    294.94/655.69 = 655.69/x
  3. Step 3: Cross multiply
    294.94x = 655.69 × 655.69
  4. Step 4: Simplify right side
    294.94x = 429,926.10
  5. Step 5: Solve for x
    x = 429,926.10/294.94
  6. Step 6: Final answer
    x = 1,457.69

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.