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Finding the Fourth Proportional to 396,283,129.60, 593,920,809.60 and 191,369,977.60

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Solution

The fourth proportional to 396,283,129.60, 593,920,809.60 and 191,369,977.60 is: 286,811,634.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,283,129.60 : 593,920,809.60 = 191,369,977.60 : x
  2. Step 2: Convert to fraction form
    396,283,129.60/593,920,809.60 = 191,369,977.60/x
  3. Step 3: Cross multiply
    396,283,129.60x = 593,920,809.60 × 191,369,977.60
  4. Step 4: Simplify right side
    396,283,129.60x = 113,658,612,029,325,872
  5. Step 5: Solve for x
    x = 113,658,612,029,325,872/396,283,129.60
  6. Step 6: Final answer
    x = 286,811,634.26

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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.