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Finding the Fourth Proportional to 604,393.59, 905,676.96 and 404,355.88

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Solution

The fourth proportional to 604,393.59, 905,676.96 and 404,355.88 is: 605,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,393.59 : 905,676.96 = 404,355.88 : x
  2. Step 2: Convert to fraction form
    604,393.59/905,676.96 = 404,355.88/x
  3. Step 3: Cross multiply
    604,393.59x = 905,676.96 × 404,355.88
  4. Step 4: Simplify right side
    604,393.59x = 366,215,799,628.14
  5. Step 5: Solve for x
    x = 366,215,799,628.14/604,393.59
  6. Step 6: Final answer
    x = 605,922.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.