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Finding the Fourth Proportional to 667,362.42, 920,960.53 and 365,561.46

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Solution

The fourth proportional to 667,362.42, 920,960.53 and 365,561.46 is: 504,475.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,362.42 : 920,960.53 = 365,561.46 : x
  2. Step 2: Convert to fraction form
    667,362.42/920,960.53 = 365,561.46/x
  3. Step 3: Cross multiply
    667,362.42x = 920,960.53 × 365,561.46
  4. Step 4: Simplify right side
    667,362.42x = 336,667,675,949.17
  5. Step 5: Solve for x
    x = 336,667,675,949.17/667,362.42
  6. Step 6: Final answer
    x = 504,475.03

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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.