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Finding the Fourth Proportional to 353,177, 529,244.40 and 208,933.64

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Solution

The fourth proportional to 353,177, 529,244.40 and 208,933.64 is: 313,092.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,177 : 529,244.40 = 208,933.64 : x
  2. Step 2: Convert to fraction form
    353,177/529,244.40 = 208,933.64/x
  3. Step 3: Cross multiply
    353,177x = 529,244.40 × 208,933.64
  4. Step 4: Simplify right side
    353,177x = 110,576,958,941.62
  5. Step 5: Solve for x
    x = 110,576,958,941.62/353,177
  6. Step 6: Final answer
    x = 313,092.19

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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.