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Finding the Fourth Proportional to 447,606.20, 617,696.62 and 243,658.67

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Solution

The fourth proportional to 447,606.20, 617,696.62 and 243,658.67 is: 336,249.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,606.20 : 617,696.62 = 243,658.67 : x
  2. Step 2: Convert to fraction form
    447,606.20/617,696.62 = 243,658.67/x
  3. Step 3: Cross multiply
    447,606.20x = 617,696.62 × 243,658.67
  4. Step 4: Simplify right side
    447,606.20x = 150,507,135,851.69
  5. Step 5: Solve for x
    x = 150,507,135,851.69/447,606.20
  6. Step 6: Final answer
    x = 336,249.00

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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.