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Finding the Fourth Proportional to 619,270.32, 854,774.52 and 404,443.80

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Solution

The fourth proportional to 619,270.32, 854,774.52 and 404,443.80 is: 558,250.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,270.32 : 854,774.52 = 404,443.80 : x
  2. Step 2: Convert to fraction form
    619,270.32/854,774.52 = 404,443.80/x
  3. Step 3: Cross multiply
    619,270.32x = 854,774.52 × 404,443.80
  4. Step 4: Simplify right side
    619,270.32x = 345,708,255,011.98
  5. Step 5: Solve for x
    x = 345,708,255,011.98/619,270.32
  6. Step 6: Final answer
    x = 558,250.97

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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.