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Finding the Fourth Proportional to 624,729.80, 937,104.78 and 225,656.84

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Solution

The fourth proportional to 624,729.80, 937,104.78 and 225,656.84 is: 338,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,729.80 : 937,104.78 = 225,656.84 : x
  2. Step 2: Convert to fraction form
    624,729.80/937,104.78 = 225,656.84/x
  3. Step 3: Cross multiply
    624,729.80x = 937,104.78 × 225,656.84
  4. Step 4: Simplify right side
    624,729.80x = 211,464,103,403.70
  5. Step 5: Solve for x
    x = 211,464,103,403.70/624,729.80
  6. Step 6: Final answer
    x = 338,488.90

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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.