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Finding the Third Proportional to 386,862,080.70 and 849,724,239.59

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Solution

The third proportional to 386,862,080.70 and 849,724,239.59 is: 1,866,379,051.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,862,080.70 : 849,724,239.59 = 849,724,239.59 : x
  2. Step 2: Convert to fraction form
    386,862,080.70/849,724,239.59 = 849,724,239.59/x
  3. Step 3: Cross multiply
    386,862,080.70x = 849,724,239.59 × 849,724,239.59
  4. Step 4: Simplify right side
    386,862,080.70x = 722,031,283,339,886,976
  5. Step 5: Solve for x
    x = 722,031,283,339,886,976/386,862,080.70
  6. Step 6: Final answer
    x = 1,866,379,051.79

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.