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Finding the Fourth Proportional to 401,318.74, 601,449.99 and 223,909.30

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Solution

The fourth proportional to 401,318.74, 601,449.99 and 223,909.30 is: 335,569.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,318.74 : 601,449.99 = 223,909.30 : x
  2. Step 2: Convert to fraction form
    401,318.74/601,449.99 = 223,909.30/x
  3. Step 3: Cross multiply
    401,318.74x = 601,449.99 × 223,909.30
  4. Step 4: Simplify right side
    401,318.74x = 134,670,246,245.91
  5. Step 5: Solve for x
    x = 134,670,246,245.91/401,318.74
  6. Step 6: Final answer
    x = 335,569.29

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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.