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Finding the Fourth Proportional to 469,375.20, 702,720.96 and 439,580.88

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Solution

The fourth proportional to 469,375.20, 702,720.96 and 439,580.88 is: 658,114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,375.20 : 702,720.96 = 439,580.88 : x
  2. Step 2: Convert to fraction form
    469,375.20/702,720.96 = 439,580.88/x
  3. Step 3: Cross multiply
    469,375.20x = 702,720.96 × 439,580.88
  4. Step 4: Simplify right side
    469,375.20x = 308,902,697,991.25
  5. Step 5: Solve for x
    x = 308,902,697,991.25/469,375.20
  6. Step 6: Final answer
    x = 658,114.66

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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.