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Finding the Third Proportional to 313,578 and 471,072

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Solution

The third proportional to 313,578 and 471,072 is: 707,667.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,578 : 471,072 = 471,072 : x
  2. Step 2: Convert to fraction form
    313,578/471,072 = 471,072/x
  3. Step 3: Cross multiply
    313,578x = 471,072 × 471,072
  4. Step 4: Simplify right side
    313,578x = 221,908,829,184
  5. Step 5: Solve for x
    x = 221,908,829,184/313,578
  6. Step 6: Final answer
    x = 707,667.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.