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Finding the Fourth Proportional to 404,009.47, 557,536.97 and 222,728.03

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Solution

The fourth proportional to 404,009.47, 557,536.97 and 222,728.03 is: 307,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,009.47 : 557,536.97 = 222,728.03 : x
  2. Step 2: Convert to fraction form
    404,009.47/557,536.97 = 222,728.03/x
  3. Step 3: Cross multiply
    404,009.47x = 557,536.97 × 222,728.03
  4. Step 4: Simplify right side
    404,009.47x = 124,179,110,840.17
  5. Step 5: Solve for x
    x = 124,179,110,840.17/404,009.47
  6. Step 6: Final answer
    x = 307,366.83

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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.