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Finding the Fourth Proportional to 413,954.52, 620,489.70 and 236,078.52

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Solution

The fourth proportional to 413,954.52, 620,489.70 and 236,078.52 is: 353,865.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,954.52 : 620,489.70 = 236,078.52 : x
  2. Step 2: Convert to fraction form
    413,954.52/620,489.70 = 236,078.52/x
  3. Step 3: Cross multiply
    413,954.52x = 620,489.70 × 236,078.52
  4. Step 4: Simplify right side
    413,954.52x = 146,484,290,051.24
  5. Step 5: Solve for x
    x = 146,484,290,051.24/413,954.52
  6. Step 6: Final answer
    x = 353,865.66

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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.