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Finding the Fourth Proportional to 892,573.63, 1,338,860.44 and 261,487.44

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Solution

The fourth proportional to 892,573.63, 1,338,860.44 and 261,487.44 is: 392,231.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,573.63 : 1,338,860.44 = 261,487.44 : x
  2. Step 2: Convert to fraction form
    892,573.63/1,338,860.44 = 261,487.44/x
  3. Step 3: Cross multiply
    892,573.63x = 1,338,860.44 × 261,487.44
  4. Step 4: Simplify right side
    892,573.63x = 350,095,189,299.73
  5. Step 5: Solve for x
    x = 350,095,189,299.73/892,573.63
  6. Step 6: Final answer
    x = 392,231.16

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Double scale
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Similar ratio
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1.5x scale

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.