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Finding the Third Proportional to 718,378 and 958,586

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Solution

The third proportional to 718,378 and 958,586 is: 1,279,113.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,378 : 958,586 = 958,586 : x
  2. Step 2: Convert to fraction form
    718,378/958,586 = 958,586/x
  3. Step 3: Cross multiply
    718,378x = 958,586 × 958,586
  4. Step 4: Simplify right side
    718,378x = 918,887,119,396
  5. Step 5: Solve for x
    x = 918,887,119,396/718,378
  6. Step 6: Final answer
    x = 1,279,113.67

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.