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Finding the Fourth Proportional to 550,661.58, 825,817.35 and 374,301.90

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Solution

The fourth proportional to 550,661.58, 825,817.35 and 374,301.90 is: 561,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,661.58 : 825,817.35 = 374,301.90 : x
  2. Step 2: Convert to fraction form
    550,661.58/825,817.35 = 374,301.90/x
  3. Step 3: Cross multiply
    550,661.58x = 825,817.35 × 374,301.90
  4. Step 4: Simplify right side
    550,661.58x = 309,105,003,157.97
  5. Step 5: Solve for x
    x = 309,105,003,157.97/550,661.58
  6. Step 6: Final answer
    x = 561,333.88

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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.