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Finding the Fourth Proportional to 488,170.08, 730,933.56 and 345,428.64

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Solution

The fourth proportional to 488,170.08, 730,933.56 and 345,428.64 is: 517,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,170.08 : 730,933.56 = 345,428.64 : x
  2. Step 2: Convert to fraction form
    488,170.08/730,933.56 = 345,428.64/x
  3. Step 3: Cross multiply
    488,170.08x = 730,933.56 × 345,428.64
  4. Step 4: Simplify right side
    488,170.08x = 252,485,385,561.16
  5. Step 5: Solve for x
    x = 252,485,385,561.16/488,170.08
  6. Step 6: Final answer
    x = 517,207.83

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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.