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Finding the Fourth Proportional to 447,419.69, 617,439.27 and 246,215.69

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Solution

The fourth proportional to 447,419.69, 617,439.27 and 246,215.69 is: 339,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,419.69 : 617,439.27 = 246,215.69 : x
  2. Step 2: Convert to fraction form
    447,419.69/617,439.27 = 246,215.69/x
  3. Step 3: Cross multiply
    447,419.69x = 617,439.27 × 246,215.69
  4. Step 4: Simplify right side
    447,419.69x = 152,023,235,896.15
  5. Step 5: Solve for x
    x = 152,023,235,896.15/447,419.69
  6. Step 6: Final answer
    x = 339,777.71

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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.