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Finding the Fourth Proportional to 604,393.03, 905,676.12 and 404,355.32

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Solution

The fourth proportional to 604,393.03, 905,676.12 and 404,355.32 is: 605,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,393.03 : 905,676.12 = 404,355.32 : x
  2. Step 2: Convert to fraction form
    604,393.03/905,676.12 = 404,355.32/x
  3. Step 3: Cross multiply
    604,393.03x = 905,676.12 × 404,355.32
  4. Step 4: Simplify right side
    604,393.03x = 366,214,955,297.18
  5. Step 5: Solve for x
    x = 366,214,955,297.18/604,393.03
  6. Step 6: Final answer
    x = 605,921.88

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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.