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Finding the Fourth Proportional to 996,693,625.61, 1,375,451,636.28 and 550,667,247.11

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Solution

The fourth proportional to 996,693,625.61, 1,375,451,636.28 and 550,667,247.11 is: 759,928,775.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,693,625.61 : 1,375,451,636.28 = 550,667,247.11 : x
  2. Step 2: Convert to fraction form
    996,693,625.61/1,375,451,636.28 = 550,667,247.11/x
  3. Step 3: Cross multiply
    996,693,625.61x = 1,375,451,636.28 × 550,667,247.11
  4. Step 4: Simplify right side
    996,693,625.61x = 757,416,166,076,375,296
  5. Step 5: Solve for x
    x = 757,416,166,076,375,296/996,693,625.61
  6. Step 6: Final answer
    x = 759,928,775.12

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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.