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Finding the Fourth Proportional to 447,046.48, 616,911.84 and 245,842.48

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Solution

The fourth proportional to 447,046.48, 616,911.84 and 245,842.48 is: 339,255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,046.48 : 616,911.84 = 245,842.48 : x
  2. Step 2: Convert to fraction form
    447,046.48/616,911.84 = 245,842.48/x
  3. Step 3: Cross multiply
    447,046.48x = 616,911.84 × 245,842.48
  4. Step 4: Simplify right side
    447,046.48x = 151,663,136,686.96
  5. Step 5: Solve for x
    x = 151,663,136,686.96/447,046.48
  6. Step 6: Final answer
    x = 339,255.86

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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.