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Finding the Fourth Proportional to 568,604.62, 849,220.43 and 515,189.87

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Solution

The fourth proportional to 568,604.62, 849,220.43 and 515,189.87 is: 769,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,604.62 : 849,220.43 = 515,189.87 : x
  2. Step 2: Convert to fraction form
    568,604.62/849,220.43 = 515,189.87/x
  3. Step 3: Cross multiply
    568,604.62x = 849,220.43 × 515,189.87
  4. Step 4: Simplify right side
    568,604.62x = 437,509,762,933.04
  5. Step 5: Solve for x
    x = 437,509,762,933.04/568,604.62
  6. Step 6: Final answer
    x = 769,444.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.