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Finding the Fourth Proportional to 338,663.88, 506,999.27 and 226,064.81

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Solution

The fourth proportional to 338,663.88, 506,999.27 and 226,064.81 is: 338,431.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,663.88 : 506,999.27 = 226,064.81 : x
  2. Step 2: Convert to fraction form
    338,663.88/506,999.27 = 226,064.81/x
  3. Step 3: Cross multiply
    338,663.88x = 506,999.27 × 226,064.81
  4. Step 4: Simplify right side
    338,663.88x = 114,614,689,977.37
  5. Step 5: Solve for x
    x = 114,614,689,977.37/338,663.88
  6. Step 6: Final answer
    x = 338,431.99

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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.