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Finding the Fourth Proportional to 588,392.72, 809,433.96 and 515,467.22

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Solution

The fourth proportional to 588,392.72, 809,433.96 and 515,467.22 is: 709,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,392.72 : 809,433.96 = 515,467.22 : x
  2. Step 2: Convert to fraction form
    588,392.72/809,433.96 = 515,467.22/x
  3. Step 3: Cross multiply
    588,392.72x = 809,433.96 × 515,467.22
  4. Step 4: Simplify right side
    588,392.72x = 417,236,673,134.79
  5. Step 5: Solve for x
    x = 417,236,673,134.79/588,392.72
  6. Step 6: Final answer
    x = 709,112.57

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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.