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Finding the Fourth Proportional to 996,991,823.88, 1,375,852,928.60 and 544,879,021.95

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Solution

The fourth proportional to 996,991,823.88, 1,375,852,928.60 and 544,879,021.95 is: 751,935,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,991,823.88 : 1,375,852,928.60 = 544,879,021.95 : x
  2. Step 2: Convert to fraction form
    996,991,823.88/1,375,852,928.60 = 544,879,021.95/x
  3. Step 3: Cross multiply
    996,991,823.88x = 1,375,852,928.60 × 544,879,021.95
  4. Step 4: Simplify right side
    996,991,823.88x = 749,673,398,082,611,200
  5. Step 5: Solve for x
    x = 749,673,398,082,611,200/996,991,823.88
  6. Step 6: Final answer
    x = 751,935,352.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.