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Finding the Fourth Proportional to 447,695.85, 617,843.07 and 254,117.19

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Solution

The fourth proportional to 447,695.85, 617,843.07 and 254,117.19 is: 350,694.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,695.85 : 617,843.07 = 254,117.19 : x
  2. Step 2: Convert to fraction form
    447,695.85/617,843.07 = 254,117.19/x
  3. Step 3: Cross multiply
    447,695.85x = 617,843.07 × 254,117.19
  4. Step 4: Simplify right side
    447,695.85x = 157,004,544,809.37
  5. Step 5: Solve for x
    x = 157,004,544,809.37/447,695.85
  6. Step 6: Final answer
    x = 350,694.66

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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.