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Finding the Fourth Proportional to 373,680.75, 515,679.44 and 222,777.75

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Solution

The fourth proportional to 373,680.75, 515,679.44 and 222,777.75 is: 307,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,680.75 : 515,679.44 = 222,777.75 : x
  2. Step 2: Convert to fraction form
    373,680.75/515,679.44 = 222,777.75/x
  3. Step 3: Cross multiply
    373,680.75x = 515,679.44 × 222,777.75
  4. Step 4: Simplify right side
    373,680.75x = 114,881,905,364.46
  5. Step 5: Solve for x
    x = 114,881,905,364.46/373,680.75
  6. Step 6: Final answer
    x = 307,433.30

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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.