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Finding the Fourth Proportional to 619,258.80, 854,586 and 463,934.88

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Solution

The fourth proportional to 619,258.80, 854,586 and 463,934.88 is: 640,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,258.80 : 854,586 = 463,934.88 : x
  2. Step 2: Convert to fraction form
    619,258.80/854,586 = 463,934.88/x
  3. Step 3: Cross multiply
    619,258.80x = 854,586 × 463,934.88
  4. Step 4: Simplify right side
    619,258.80x = 396,472,253,359.68
  5. Step 5: Solve for x
    x = 396,472,253,359.68/619,258.80
  6. Step 6: Final answer
    x = 640,236.77

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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.