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Finding the Fourth Proportional to 884,910,511.80, 1,236,578,891.40 and 884,910,511.80

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Solution

The fourth proportional to 884,910,511.80, 1,236,578,891.40 and 884,910,511.80 is: 1,236,578,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,910,511.80 : 1,236,578,891.40 = 884,910,511.80 : x
  2. Step 2: Convert to fraction form
    884,910,511.80/1,236,578,891.40 = 884,910,511.80/x
  3. Step 3: Cross multiply
    884,910,511.80x = 1,236,578,891.40 × 884,910,511.80
  4. Step 4: Simplify right side
    884,910,511.80x = 1,094,261,659,669,850,624
  5. Step 5: Solve for x
    x = 1,094,261,659,669,850,624/884,910,511.80
  6. Step 6: Final answer
    x = 1,236,578,891.40

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1.5x scale

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.