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Finding the Fourth Proportional to 383,414.81, 529,114.53 and 222,365.34

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Solution

The fourth proportional to 383,414.81, 529,114.53 and 222,365.34 is: 306,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,414.81 : 529,114.53 = 222,365.34 : x
  2. Step 2: Convert to fraction form
    383,414.81/529,114.53 = 222,365.34/x
  3. Step 3: Cross multiply
    383,414.81x = 529,114.53 × 222,365.34
  4. Step 4: Simplify right side
    383,414.81x = 117,656,732,362.39
  5. Step 5: Solve for x
    x = 117,656,732,362.39/383,414.81
  6. Step 6: Final answer
    x = 306,865.39

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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.