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Finding the Fourth Proportional to 461,336.37, 636,662.62 and 257,405.11

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Solution

The fourth proportional to 461,336.37, 636,662.62 and 257,405.11 is: 355,229.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,336.37 : 636,662.62 = 257,405.11 : x
  2. Step 2: Convert to fraction form
    461,336.37/636,662.62 = 257,405.11/x
  3. Step 3: Cross multiply
    461,336.37x = 636,662.62 × 257,405.11
  4. Step 4: Simplify right side
    461,336.37x = 163,880,211,733.99
  5. Step 5: Solve for x
    x = 163,880,211,733.99/461,336.37
  6. Step 6: Final answer
    x = 355,229.33

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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.