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Finding the Fourth Proportional to 349,388.91, 482,241.20 and 325,749.87

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Solution

The fourth proportional to 349,388.91, 482,241.20 and 325,749.87 is: 449,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,388.91 : 482,241.20 = 325,749.87 : x
  2. Step 2: Convert to fraction form
    349,388.91/482,241.20 = 325,749.87/x
  3. Step 3: Cross multiply
    349,388.91x = 482,241.20 × 325,749.87
  4. Step 4: Simplify right side
    349,388.91x = 157,090,006,579.90
  5. Step 5: Solve for x
    x = 157,090,006,579.90/349,388.91
  6. Step 6: Final answer
    x = 449,613.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.