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Finding the Fourth Proportional to 647,186.77, 971,217.56 and 226,466.29

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Solution

The fourth proportional to 647,186.77, 971,217.56 and 226,466.29 is: 339,852.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,186.77 : 971,217.56 = 226,466.29 : x
  2. Step 2: Convert to fraction form
    647,186.77/971,217.56 = 226,466.29/x
  3. Step 3: Cross multiply
    647,186.77x = 971,217.56 × 226,466.29
  4. Step 4: Simplify right side
    647,186.77x = 219,948,037,596.05
  5. Step 5: Solve for x
    x = 219,948,037,596.05/647,186.77
  6. Step 6: Final answer
    x = 339,852.49

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1.5x scale

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.