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Finding the Third Proportional to 295,720 and 458,747

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Solution

The third proportional to 295,720 and 458,747 is: 711,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,720 : 458,747 = 458,747 : x
  2. Step 2: Convert to fraction form
    295,720/458,747 = 458,747/x
  3. Step 3: Cross multiply
    295,720x = 458,747 × 458,747
  4. Step 4: Simplify right side
    295,720x = 210,448,810,009
  5. Step 5: Solve for x
    x = 210,448,810,009/295,720
  6. Step 6: Final answer
    x = 711,648.89

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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.