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Finding the Fourth Proportional to 574,811,612, 793,240,372.06 and 310,493,721.80

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Solution

The fourth proportional to 574,811,612, 793,240,372.06 and 310,493,721.80 is: 428,481,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,811,612 : 793,240,372.06 = 310,493,721.80 : x
  2. Step 2: Convert to fraction form
    574,811,612/793,240,372.06 = 310,493,721.80/x
  3. Step 3: Cross multiply
    574,811,612x = 793,240,372.06 × 310,493,721.80
  4. Step 4: Simplify right side
    574,811,612x = 246,296,155,402,926,112
  5. Step 5: Solve for x
    x = 246,296,155,402,926,112/574,811,612
  6. Step 6: Final answer
    x = 428,481,523.79

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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.