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Finding the Fourth Proportional to 819,310,200.37, 1,228,965,300.56 and 819,310,200.37

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Solution

The fourth proportional to 819,310,200.37, 1,228,965,300.56 and 819,310,200.37 is: 1,228,965,300.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,310,200.37 : 1,228,965,300.56 = 819,310,200.37 : x
  2. Step 2: Convert to fraction form
    819,310,200.37/1,228,965,300.56 = 819,310,200.37/x
  3. Step 3: Cross multiply
    819,310,200.37x = 1,228,965,300.56 × 819,310,200.37
  4. Step 4: Simplify right side
    819,310,200.37x = 1,006,903,806,655,448,960
  5. Step 5: Solve for x
    x = 1,006,903,806,655,448,960/819,310,200.37
  6. Step 6: Final answer
    x = 1,228,965,300.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.