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Finding the Fourth Proportional to 1,329,697,789.80, 1,994,546,684.70 and 894,341,322.60

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Solution

The fourth proportional to 1,329,697,789.80, 1,994,546,684.70 and 894,341,322.60 is: 1,341,511,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,697,789.80 : 1,994,546,684.70 = 894,341,322.60 : x
  2. Step 2: Convert to fraction form
    1,329,697,789.80/1,994,546,684.70 = 894,341,322.60/x
  3. Step 3: Cross multiply
    1,329,697,789.80x = 1,994,546,684.70 × 894,341,322.60
  4. Step 4: Simplify right side
    1,329,697,789.80x = 1,783,805,519,982,043,392
  5. Step 5: Solve for x
    x = 1,783,805,519,982,043,392/1,329,697,789.80
  6. Step 6: Final answer
    x = 1,341,511,983.90

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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.