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Finding the Fourth Proportional to 447,572.82, 617,703.20 and 251,371.59

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Solution

The fourth proportional to 447,572.82, 617,703.20 and 251,371.59 is: 346,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,572.82 : 617,703.20 = 251,371.59 : x
  2. Step 2: Convert to fraction form
    447,572.82/617,703.20 = 251,371.59/x
  3. Step 3: Cross multiply
    447,572.82x = 617,703.20 × 251,371.59
  4. Step 4: Simplify right side
    447,572.82x = 155,273,034,275.23
  5. Step 5: Solve for x
    x = 155,273,034,275.23/447,572.82
  6. Step 6: Final answer
    x = 346,922.39

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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.