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Finding the Fourth Proportional to 619,053.84, 854,297.28 and 404,066.88

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Solution

The fourth proportional to 619,053.84, 854,297.28 and 404,066.88 is: 557,614.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,053.84 : 854,297.28 = 404,066.88 : x
  2. Step 2: Convert to fraction form
    619,053.84/854,297.28 = 404,066.88/x
  3. Step 3: Cross multiply
    619,053.84x = 854,297.28 × 404,066.88
  4. Step 4: Simplify right side
    619,053.84x = 345,193,236,522.09
  5. Step 5: Solve for x
    x = 345,193,236,522.09/619,053.84
  6. Step 6: Final answer
    x = 557,614.24

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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.