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Finding the Fourth Proportional to 647,961.17, 894,186.80 and 361,481.26

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Solution

The fourth proportional to 647,961.17, 894,186.80 and 361,481.26 is: 498,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,961.17 : 894,186.80 = 361,481.26 : x
  2. Step 2: Convert to fraction form
    647,961.17/894,186.80 = 361,481.26/x
  3. Step 3: Cross multiply
    647,961.17x = 894,186.80 × 361,481.26
  4. Step 4: Simplify right side
    647,961.17x = 323,231,769,807.60
  5. Step 5: Solve for x
    x = 323,231,769,807.60/647,961.17
  6. Step 6: Final answer
    x = 498,844.35

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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.