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Finding the Fourth Proportional to 488,679.60, 732,995.10 and 252,046.20

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Solution

The fourth proportional to 488,679.60, 732,995.10 and 252,046.20 is: 378,056.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,679.60 : 732,995.10 = 252,046.20 : x
  2. Step 2: Convert to fraction form
    488,679.60/732,995.10 = 252,046.20/x
  3. Step 3: Cross multiply
    488,679.60x = 732,995.10 × 252,046.20
  4. Step 4: Simplify right side
    488,679.60x = 184,748,629,573.62
  5. Step 5: Solve for x
    x = 184,748,629,573.62/488,679.60
  6. Step 6: Final answer
    x = 378,056.77

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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.