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Finding the Fourth Proportional to 995,844,407.40, 1,396,222,903.80 and 995,844,407.40

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Solution

The fourth proportional to 995,844,407.40, 1,396,222,903.80 and 995,844,407.40 is: 1,396,222,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,844,407.40 : 1,396,222,903.80 = 995,844,407.40 : x
  2. Step 2: Convert to fraction form
    995,844,407.40/1,396,222,903.80 = 995,844,407.40/x
  3. Step 3: Cross multiply
    995,844,407.40x = 1,396,222,903.80 × 995,844,407.40
  4. Step 4: Simplify right side
    995,844,407.40x = 1,390,420,770,233,018,112
  5. Step 5: Solve for x
    x = 1,390,420,770,233,018,112/995,844,407.40
  6. Step 6: Final answer
    x = 1,396,222,903.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.