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Finding the Fourth Proportional to 476,819.88, 657,472.86 and 347,529.84

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Solution

The fourth proportional to 476,819.88, 657,472.86 and 347,529.84 is: 479,198.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,819.88 : 657,472.86 = 347,529.84 : x
  2. Step 2: Convert to fraction form
    476,819.88/657,472.86 = 347,529.84/x
  3. Step 3: Cross multiply
    476,819.88x = 657,472.86 × 347,529.84
  4. Step 4: Simplify right side
    476,819.88x = 228,491,437,840.14
  5. Step 5: Solve for x
    x = 228,491,437,840.14/476,819.88
  6. Step 6: Final answer
    x = 479,198.64

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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.