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Finding the Fourth Proportional to 529,659.20, 792,415.20 and 343,035.20

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Solution

The fourth proportional to 529,659.20, 792,415.20 and 343,035.20 is: 513,209.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,659.20 : 792,415.20 = 343,035.20 : x
  2. Step 2: Convert to fraction form
    529,659.20/792,415.20 = 343,035.20/x
  3. Step 3: Cross multiply
    529,659.20x = 792,415.20 × 343,035.20
  4. Step 4: Simplify right side
    529,659.20x = 271,826,306,615.04
  5. Step 5: Solve for x
    x = 271,826,306,615.04/529,659.20
  6. Step 6: Final answer
    x = 513,209.83

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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.