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Finding the Fourth Proportional to 542,438.58, 748,609.44 and 300,796.92

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Solution

The fourth proportional to 542,438.58, 748,609.44 and 300,796.92 is: 415,124.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,438.58 : 748,609.44 = 300,796.92 : x
  2. Step 2: Convert to fraction form
    542,438.58/748,609.44 = 300,796.92/x
  3. Step 3: Cross multiply
    542,438.58x = 748,609.44 × 300,796.92
  4. Step 4: Simplify right side
    542,438.58x = 225,179,413,834.93
  5. Step 5: Solve for x
    x = 225,179,413,834.93/542,438.58
  6. Step 6: Final answer
    x = 415,124.26

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Similar ratio
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1.5x scale

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.