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Finding the Fourth Proportional to 350,540.10, 524,600.55 and 210,399.30

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Solution

The fourth proportional to 350,540.10, 524,600.55 and 210,399.30 is: 314,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,540.10 : 524,600.55 = 210,399.30 : x
  2. Step 2: Convert to fraction form
    350,540.10/524,600.55 = 210,399.30/x
  3. Step 3: Cross multiply
    350,540.10x = 524,600.55 × 210,399.30
  4. Step 4: Simplify right side
    350,540.10x = 110,375,588,499.62
  5. Step 5: Solve for x
    x = 110,375,588,499.62/350,540.10
  6. Step 6: Final answer
    x = 314,872.93

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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.