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Finding the Fourth Proportional to 629,424,051.90, 944,986,383.45 and 399,841,539.90

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Solution

The fourth proportional to 629,424,051.90, 944,986,383.45 and 399,841,539.90 is: 600,302,466.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,424,051.90 : 944,986,383.45 = 399,841,539.90 : x
  2. Step 2: Convert to fraction form
    629,424,051.90/944,986,383.45 = 399,841,539.90/x
  3. Step 3: Cross multiply
    629,424,051.90x = 944,986,383.45 × 399,841,539.90
  4. Step 4: Simplify right side
    629,424,051.90x = 377,844,810,743,179,840
  5. Step 5: Solve for x
    x = 377,844,810,743,179,840/629,424,051.90
  6. Step 6: Final answer
    x = 600,302,466.36

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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.