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Finding the Fourth Proportional to 401,067.76, 553,473.52 and 222,219.76

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Solution

The fourth proportional to 401,067.76, 553,473.52 and 222,219.76 is: 306,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,067.76 : 553,473.52 = 222,219.76 : x
  2. Step 2: Convert to fraction form
    401,067.76/553,473.52 = 222,219.76/x
  3. Step 3: Cross multiply
    401,067.76x = 553,473.52 × 222,219.76
  4. Step 4: Simplify right side
    401,067.76x = 122,992,752,780.76
  5. Step 5: Solve for x
    x = 122,992,752,780.76/401,067.76
  6. Step 6: Final answer
    x = 306,663.28

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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.