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Finding the Fourth Proportional to 624,843.12, 937,070.82 and 225,431.96

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Solution

The fourth proportional to 624,843.12, 937,070.82 and 225,431.96 is: 338,078.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,843.12 : 937,070.82 = 225,431.96 : x
  2. Step 2: Convert to fraction form
    624,843.12/937,070.82 = 225,431.96/x
  3. Step 3: Cross multiply
    624,843.12x = 937,070.82 × 225,431.96
  4. Step 4: Simplify right side
    624,843.12x = 211,245,711,611.41
  5. Step 5: Solve for x
    x = 211,245,711,611.41/624,843.12
  6. Step 6: Final answer
    x = 338,078.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.