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Finding the Fourth Proportional to 483,360.96, 666,769.36 and 449,149.56

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Solution

The fourth proportional to 483,360.96, 666,769.36 and 449,149.56 is: 619,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,360.96 : 666,769.36 = 449,149.56 : x
  2. Step 2: Convert to fraction form
    483,360.96/666,769.36 = 449,149.56/x
  3. Step 3: Cross multiply
    483,360.96x = 666,769.36 × 449,149.56
  4. Step 4: Simplify right side
    483,360.96x = 299,479,164,665.48
  5. Step 5: Solve for x
    x = 299,479,164,665.48/483,360.96
  6. Step 6: Final answer
    x = 619,576.65

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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.