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Finding the Third Proportional to 389,910,701.81 and 866,999,870.81

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Solution

The third proportional to 389,910,701.81 and 866,999,870.81 is: 1,927,848,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,910,701.81 : 866,999,870.81 = 866,999,870.81 : x
  2. Step 2: Convert to fraction form
    389,910,701.81/866,999,870.81 = 866,999,870.81/x
  3. Step 3: Cross multiply
    389,910,701.81x = 866,999,870.81 × 866,999,870.81
  4. Step 4: Simplify right side
    389,910,701.81x = 751,688,775,988,891,648
  5. Step 5: Solve for x
    x = 751,688,775,988,891,648/389,910,701.81
  6. Step 6: Final answer
    x = 1,927,848,536.84

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.