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Finding the Fourth Proportional to 403,934.92, 557,404.82 and 222,636.88

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Solution

The fourth proportional to 403,934.92, 557,404.82 and 222,636.88 is: 307,224.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,934.92 : 557,404.82 = 222,636.88 : x
  2. Step 2: Convert to fraction form
    403,934.92/557,404.82 = 222,636.88/x
  3. Step 3: Cross multiply
    403,934.92x = 557,404.82 × 222,636.88
  4. Step 4: Simplify right side
    403,934.92x = 124,098,870,021.76
  5. Step 5: Solve for x
    x = 124,098,870,021.76/403,934.92
  6. Step 6: Final answer
    x = 307,224.91

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1.5x scale

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.