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Finding the Fourth Proportional to 552,584.58, 762,523.11 and 310,819.02

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Solution

The fourth proportional to 552,584.58, 762,523.11 and 310,819.02 is: 428,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,584.58 : 762,523.11 = 310,819.02 : x
  2. Step 2: Convert to fraction form
    552,584.58/762,523.11 = 310,819.02/x
  3. Step 3: Cross multiply
    552,584.58x = 762,523.11 × 310,819.02
  4. Step 4: Simplify right side
    552,584.58x = 237,006,685,777.55
  5. Step 5: Solve for x
    x = 237,006,685,777.55/552,584.58
  6. Step 6: Final answer
    x = 428,905.72

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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.