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Finding the Fourth Proportional to 337,247.80, 505,871.70 and 321,695.80

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Solution

The fourth proportional to 337,247.80, 505,871.70 and 321,695.80 is: 482,543.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,247.80 : 505,871.70 = 321,695.80 : x
  2. Step 2: Convert to fraction form
    337,247.80/505,871.70 = 321,695.80/x
  3. Step 3: Cross multiply
    337,247.80x = 505,871.70 × 321,695.80
  4. Step 4: Simplify right side
    337,247.80x = 162,736,801,228.86
  5. Step 5: Solve for x
    x = 162,736,801,228.86/337,247.80
  6. Step 6: Final answer
    x = 482,543.70

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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.