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Finding the Third Proportional to 295,658 and 458,722

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Solution

The third proportional to 295,658 and 458,722 is: 711,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,658 : 458,722 = 458,722 : x
  2. Step 2: Convert to fraction form
    295,658/458,722 = 458,722/x
  3. Step 3: Cross multiply
    295,658x = 458,722 × 458,722
  4. Step 4: Simplify right side
    295,658x = 210,425,873,284
  5. Step 5: Solve for x
    x = 210,425,873,284/295,658
  6. Step 6: Final answer
    x = 711,720.55

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.