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Finding the Fourth Proportional to 447,812.56, 618,004.20 and 254,233.84

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Solution

The fourth proportional to 447,812.56, 618,004.20 and 254,233.84 is: 350,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,812.56 : 618,004.20 = 254,233.84 : x
  2. Step 2: Convert to fraction form
    447,812.56/618,004.20 = 254,233.84/x
  3. Step 3: Cross multiply
    447,812.56x = 618,004.20 × 254,233.84
  4. Step 4: Simplify right side
    447,812.56x = 157,117,580,902.13
  5. Step 5: Solve for x
    x = 157,117,580,902.13/447,812.56
  6. Step 6: Final answer
    x = 350,855.68

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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.