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Finding the Fourth Proportional to 404,751,344.44, 558,557,035.50 and 219,112,353.88

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Solution

The fourth proportional to 404,751,344.44, 558,557,035.50 and 219,112,353.88 is: 302,375,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,751,344.44 : 558,557,035.50 = 219,112,353.88 : x
  2. Step 2: Convert to fraction form
    404,751,344.44/558,557,035.50 = 219,112,353.88/x
  3. Step 3: Cross multiply
    404,751,344.44x = 558,557,035.50 × 219,112,353.88
  4. Step 4: Simplify right side
    404,751,344.44x = 122,386,746,824,639,728
  5. Step 5: Solve for x
    x = 122,386,746,824,639,728/404,751,344.44
  6. Step 6: Final answer
    x = 302,375,145.89

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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.