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Finding the Fourth Proportional to 551,433.88, 760,889.27 and 344,677.80

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Solution

The fourth proportional to 551,433.88, 760,889.27 and 344,677.80 is: 475,599.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,433.88 : 760,889.27 = 344,677.80 : x
  2. Step 2: Convert to fraction form
    551,433.88/760,889.27 = 344,677.80/x
  3. Step 3: Cross multiply
    551,433.88x = 760,889.27 × 344,677.80
  4. Step 4: Simplify right side
    551,433.88x = 262,261,639,627.21
  5. Step 5: Solve for x
    x = 262,261,639,627.21/551,433.88
  6. Step 6: Final answer
    x = 475,599.43

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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.