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Finding the Fourth Proportional to 418,191.54, 577,105.73 and 236,937.03

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Solution

The fourth proportional to 418,191.54, 577,105.73 and 236,937.03 is: 326,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,191.54 : 577,105.73 = 236,937.03 : x
  2. Step 2: Convert to fraction form
    418,191.54/577,105.73 = 236,937.03/x
  3. Step 3: Cross multiply
    418,191.54x = 577,105.73 × 236,937.03
  4. Step 4: Simplify right side
    418,191.54x = 136,737,717,662.18
  5. Step 5: Solve for x
    x = 136,737,717,662.18/418,191.54
  6. Step 6: Final answer
    x = 326,973.90

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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.