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Finding the Fourth Proportional to 347,593, 479,678.34 and 188,617

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Solution

The fourth proportional to 347,593, 479,678.34 and 188,617 is: 260,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,593 : 479,678.34 = 188,617 : x
  2. Step 2: Convert to fraction form
    347,593/479,678.34 = 188,617/x
  3. Step 3: Cross multiply
    347,593x = 479,678.34 × 188,617
  4. Step 4: Simplify right side
    347,593x = 90,475,489,455.78
  5. Step 5: Solve for x
    x = 90,475,489,455.78/347,593
  6. Step 6: Final answer
    x = 260,291.46

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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.