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Finding the Fourth Proportional to 447,598.36, 617,698.64 and 243,662.48

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Solution

The fourth proportional to 447,598.36, 617,698.64 and 243,662.48 is: 336,261.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,598.36 : 617,698.64 = 243,662.48 : x
  2. Step 2: Convert to fraction form
    447,598.36/617,698.64 = 243,662.48/x
  3. Step 3: Cross multiply
    447,598.36x = 617,698.64 × 243,662.48
  4. Step 4: Simplify right side
    447,598.36x = 150,509,982,515.03
  5. Step 5: Solve for x
    x = 150,509,982,515.03/447,598.36
  6. Step 6: Final answer
    x = 336,261.25

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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.