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Finding the Fourth Proportional to 573,028.20, 790,876.32 and 331,457.64

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Solution

The fourth proportional to 573,028.20, 790,876.32 and 331,457.64 is: 457,467.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,028.20 : 790,876.32 = 331,457.64 : x
  2. Step 2: Convert to fraction form
    573,028.20/790,876.32 = 331,457.64/x
  3. Step 3: Cross multiply
    573,028.20x = 790,876.32 × 331,457.64
  4. Step 4: Simplify right side
    573,028.20x = 262,141,998,559.09
  5. Step 5: Solve for x
    x = 262,141,998,559.09/573,028.20
  6. Step 6: Final answer
    x = 457,467.88

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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.