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Finding the Fourth Proportional to 373,576.80, 515,575.69 and 228,467.47

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Solution

The fourth proportional to 373,576.80, 515,575.69 and 228,467.47 is: 315,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,576.80 : 515,575.69 = 228,467.47 : x
  2. Step 2: Convert to fraction form
    373,576.80/515,575.69 = 228,467.47/x
  3. Step 3: Cross multiply
    373,576.80x = 515,575.69 × 228,467.47
  4. Step 4: Simplify right side
    373,576.80x = 117,792,271,627.70
  5. Step 5: Solve for x
    x = 117,792,271,627.70/373,576.80
  6. Step 6: Final answer
    x = 315,309.39

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1.5x scale

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.