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Finding the Third Proportional to 401,715,960 and 870,469,132

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Solution

The third proportional to 401,715,960 and 870,469,132 is: 1,886,199,666.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,715,960 : 870,469,132 = 870,469,132 : x
  2. Step 2: Convert to fraction form
    401,715,960/870,469,132 = 870,469,132/x
  3. Step 3: Cross multiply
    401,715,960x = 870,469,132 × 870,469,132
  4. Step 4: Simplify right side
    401,715,960x = 757,716,509,764,833,408
  5. Step 5: Solve for x
    x = 757,716,509,764,833,408/401,715,960
  6. Step 6: Final answer
    x = 1,886,199,666.46

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.