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Finding the Third Proportional to 393,587 and 841,894

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Solution

The third proportional to 393,587 and 841,894 is: 1,800,835.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,587 : 841,894 = 841,894 : x
  2. Step 2: Convert to fraction form
    393,587/841,894 = 841,894/x
  3. Step 3: Cross multiply
    393,587x = 841,894 × 841,894
  4. Step 4: Simplify right side
    393,587x = 708,785,507,236
  5. Step 5: Solve for x
    x = 708,785,507,236/393,587
  6. Step 6: Final answer
    x = 1,800,835.67

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.