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Finding the Fourth Proportional to 619,264.80, 854,594.28 and 463,940.88

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Solution

The fourth proportional to 619,264.80, 854,594.28 and 463,940.88 is: 640,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,264.80 : 854,594.28 = 463,940.88 : x
  2. Step 2: Convert to fraction form
    619,264.80/854,594.28 = 463,940.88/x
  3. Step 3: Cross multiply
    619,264.80x = 854,594.28 × 463,940.88
  4. Step 4: Simplify right side
    619,264.80x = 396,481,222,306.17
  5. Step 5: Solve for x
    x = 396,481,222,306.17/619,264.80
  6. Step 6: Final answer
    x = 640,245.05

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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.