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Finding the Third Proportional to 313,560 and 473,256

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Solution

The third proportional to 313,560 and 473,256 is: 714,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,560 : 473,256 = 473,256 : x
  2. Step 2: Convert to fraction form
    313,560/473,256 = 473,256/x
  3. Step 3: Cross multiply
    313,560x = 473,256 × 473,256
  4. Step 4: Simplify right side
    313,560x = 223,971,241,536
  5. Step 5: Solve for x
    x = 223,971,241,536/313,560
  6. Step 6: Final answer
    x = 714,285.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.