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Finding the Fourth Proportional to 542,576.18, 748,793.50 and 300,881.90

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Solution

The fourth proportional to 542,576.18, 748,793.50 and 300,881.90 is: 415,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,576.18 : 748,793.50 = 300,881.90 : x
  2. Step 2: Convert to fraction form
    542,576.18/748,793.50 = 300,881.90/x
  3. Step 3: Cross multiply
    542,576.18x = 748,793.50 × 300,881.90
  4. Step 4: Simplify right side
    542,576.18x = 225,298,410,987.65
  5. Step 5: Solve for x
    x = 225,298,410,987.65/542,576.18
  6. Step 6: Final answer
    x = 415,238.30

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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.