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Finding the Fourth Proportional to 667,034.48, 920,517.72 and 365,256.56

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Solution

The fourth proportional to 667,034.48, 920,517.72 and 365,256.56 is: 504,059.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,034.48 : 920,517.72 = 365,256.56 : x
  2. Step 2: Convert to fraction form
    667,034.48/920,517.72 = 365,256.56/x
  3. Step 3: Cross multiply
    667,034.48x = 920,517.72 × 365,256.56
  4. Step 4: Simplify right side
    667,034.48x = 336,225,135,826.24
  5. Step 5: Solve for x
    x = 336,225,135,826.24/667,034.48
  6. Step 6: Final answer
    x = 504,059.60

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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.