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Finding the Fourth Proportional to 429,279.21, 592,375.67 and 238,277.56

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Solution

The fourth proportional to 429,279.21, 592,375.67 and 238,277.56 is: 328,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,279.21 : 592,375.67 = 238,277.56 : x
  2. Step 2: Convert to fraction form
    429,279.21/592,375.67 = 238,277.56/x
  3. Step 3: Cross multiply
    429,279.21x = 592,375.67 × 238,277.56
  4. Step 4: Simplify right side
    429,279.21x = 141,149,829,250.97
  5. Step 5: Solve for x
    x = 141,149,829,250.97/429,279.21
  6. Step 6: Final answer
    x = 328,806.58

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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.