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Finding the Fourth Proportional to 535,239.26, 803,183 and 215,462.20

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Solution

The fourth proportional to 535,239.26, 803,183 and 215,462.20 is: 323,323.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,239.26 : 803,183 = 215,462.20 : x
  2. Step 2: Convert to fraction form
    535,239.26/803,183 = 215,462.20/x
  3. Step 3: Cross multiply
    535,239.26x = 803,183 × 215,462.20
  4. Step 4: Simplify right side
    535,239.26x = 173,055,576,182.60
  5. Step 5: Solve for x
    x = 173,055,576,182.60/535,239.26
  6. Step 6: Final answer
    x = 323,323.77

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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.