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Finding the Fourth Proportional to 658,515.26, 987,910.60 and 374,336.48

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Solution

The fourth proportional to 658,515.26, 987,910.60 and 374,336.48 is: 561,583.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,515.26 : 987,910.60 = 374,336.48 : x
  2. Step 2: Convert to fraction form
    658,515.26/987,910.60 = 374,336.48/x
  3. Step 3: Cross multiply
    658,515.26x = 987,910.60 × 374,336.48
  4. Step 4: Simplify right side
    658,515.26x = 369,810,976,558.69
  5. Step 5: Solve for x
    x = 369,810,976,558.69/658,515.26
  6. Step 6: Final answer
    x = 561,583.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.