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Finding the Fourth Proportional to 347,623.88, 479,720.95 and 188,647.88

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Solution

The fourth proportional to 347,623.88, 479,720.95 and 188,647.88 is: 260,334.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,623.88 : 479,720.95 = 188,647.88 : x
  2. Step 2: Convert to fraction form
    347,623.88/479,720.95 = 188,647.88/x
  3. Step 3: Cross multiply
    347,623.88x = 479,720.95 × 188,647.88
  4. Step 4: Simplify right side
    347,623.88x = 90,498,337,338.86
  5. Step 5: Solve for x
    x = 90,498,337,338.86/347,623.88
  6. Step 6: Final answer
    x = 260,334.07

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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.