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Finding the Fourth Proportional to 323,741.80, 485,612.70 and 323,741.80

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Solution

The fourth proportional to 323,741.80, 485,612.70 and 323,741.80 is: 485,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,741.80 : 485,612.70 = 323,741.80 : x
  2. Step 2: Convert to fraction form
    323,741.80/485,612.70 = 323,741.80/x
  3. Step 3: Cross multiply
    323,741.80x = 485,612.70 × 323,741.80
  4. Step 4: Simplify right side
    323,741.80x = 157,213,129,600.86
  5. Step 5: Solve for x
    x = 157,213,129,600.86/323,741.80
  6. Step 6: Final answer
    x = 485,612.70

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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.