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Finding the Fourth Proportional to 479,873.20, 718,300.36 and 329,232.64

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Solution

The fourth proportional to 479,873.20, 718,300.36 and 329,232.64 is: 492,813.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,873.20 : 718,300.36 = 329,232.64 : x
  2. Step 2: Convert to fraction form
    479,873.20/718,300.36 = 329,232.64/x
  3. Step 3: Cross multiply
    479,873.20x = 718,300.36 × 329,232.64
  4. Step 4: Simplify right side
    479,873.20x = 236,487,923,835.75
  5. Step 5: Solve for x
    x = 236,487,923,835.75/479,873.20
  6. Step 6: Final answer
    x = 492,813.36

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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.