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Finding the Fourth Proportional to 447,882.75, 618,078.20 and 246,678.75

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Solution

The fourth proportional to 447,882.75, 618,078.20 and 246,678.75 is: 340,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,882.75 : 618,078.20 = 246,678.75 : x
  2. Step 2: Convert to fraction form
    447,882.75/618,078.20 = 246,678.75/x
  3. Step 3: Cross multiply
    447,882.75x = 618,078.20 × 246,678.75
  4. Step 4: Simplify right side
    447,882.75x = 152,466,756,544.86
  5. Step 5: Solve for x
    x = 152,466,756,544.86/447,882.75
  6. Step 6: Final answer
    x = 340,416.68

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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.