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Finding the Fourth Proportional to 393,864.64, 543,574.08 and 241,004.80

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Solution

The fourth proportional to 393,864.64, 543,574.08 and 241,004.80 is: 332,611.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,864.64 : 543,574.08 = 241,004.80 : x
  2. Step 2: Convert to fraction form
    393,864.64/543,574.08 = 241,004.80/x
  3. Step 3: Cross multiply
    393,864.64x = 543,574.08 × 241,004.80
  4. Step 4: Simplify right side
    393,864.64x = 131,003,962,435.58
  5. Step 5: Solve for x
    x = 131,003,962,435.58/393,864.64
  6. Step 6: Final answer
    x = 332,611.64

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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.