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Finding the Fourth Proportional to 341,687.20, 512,530.80 and 223,722.40

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Solution

The fourth proportional to 341,687.20, 512,530.80 and 223,722.40 is: 335,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,687.20 : 512,530.80 = 223,722.40 : x
  2. Step 2: Convert to fraction form
    341,687.20/512,530.80 = 223,722.40/x
  3. Step 3: Cross multiply
    341,687.20x = 512,530.80 × 223,722.40
  4. Step 4: Simplify right side
    341,687.20x = 114,664,620,649.92
  5. Step 5: Solve for x
    x = 114,664,620,649.92/341,687.20
  6. Step 6: Final answer
    x = 335,583.60

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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.