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Finding the Fourth Proportional to 667,452.02, 921,084.08 and 361,527.48

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Solution

The fourth proportional to 667,452.02, 921,084.08 and 361,527.48 is: 498,908.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,452.02 : 921,084.08 = 361,527.48 : x
  2. Step 2: Convert to fraction form
    667,452.02/921,084.08 = 361,527.48/x
  3. Step 3: Cross multiply
    667,452.02x = 921,084.08 × 361,527.48
  4. Step 4: Simplify right side
    667,452.02x = 332,997,202,404.54
  5. Step 5: Solve for x
    x = 332,997,202,404.54/667,452.02
  6. Step 6: Final answer
    x = 498,908.07

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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.