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Finding the Fourth Proportional to 575,043,992.20, 861,978,122.70 and 283,462,654.60

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Solution

The fourth proportional to 575,043,992.20, 861,978,122.70 and 283,462,654.60 is: 424,904,198.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,043,992.20 : 861,978,122.70 = 283,462,654.60 : x
  2. Step 2: Convert to fraction form
    575,043,992.20/861,978,122.70 = 283,462,654.60/x
  3. Step 3: Cross multiply
    575,043,992.20x = 861,978,122.70 × 283,462,654.60
  4. Step 4: Simplify right side
    575,043,992.20x = 244,338,606,867,666,560
  5. Step 5: Solve for x
    x = 244,338,606,867,666,560/575,043,992.20
  6. Step 6: Final answer
    x = 424,904,198.95

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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.