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Finding the Fourth Proportional to 403,704.22, 605,560.96 and 172,862.12

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Solution

The fourth proportional to 403,704.22, 605,560.96 and 172,862.12 is: 259,295.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704.22 : 605,560.96 = 172,862.12 : x
  2. Step 2: Convert to fraction form
    403,704.22/605,560.96 = 172,862.12/x
  3. Step 3: Cross multiply
    403,704.22x = 605,560.96 × 172,862.12
  4. Step 4: Simplify right side
    403,704.22x = 104,678,551,334.84
  5. Step 5: Solve for x
    x = 104,678,551,334.84/403,704.22
  6. Step 6: Final answer
    x = 259,295.16

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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.