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Finding the Fourth Proportional to 911,662.26, 1,257,891.84 and 524,453.91

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Solution

The fourth proportional to 911,662.26, 1,257,891.84 and 524,453.91 is: 723,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,662.26 : 1,257,891.84 = 524,453.91 : x
  2. Step 2: Convert to fraction form
    911,662.26/1,257,891.84 = 524,453.91/x
  3. Step 3: Cross multiply
    911,662.26x = 1,257,891.84 × 524,453.91
  4. Step 4: Simplify right side
    911,662.26x = 659,706,293,845.10
  5. Step 5: Solve for x
    x = 659,706,293,845.10/911,662.26
  6. Step 6: Final answer
    x = 723,630.15

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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.