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Finding the Fourth Proportional to 447,039.92, 616,899 and 245,834.48

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Solution

The fourth proportional to 447,039.92, 616,899 and 245,834.48 is: 339,242.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,039.92 : 616,899 = 245,834.48 : x
  2. Step 2: Convert to fraction form
    447,039.92/616,899 = 245,834.48/x
  3. Step 3: Cross multiply
    447,039.92x = 616,899 × 245,834.48
  4. Step 4: Simplify right side
    447,039.92x = 151,655,044,877.52
  5. Step 5: Solve for x
    x = 151,655,044,877.52/447,039.92
  6. Step 6: Final answer
    x = 339,242.73

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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.