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Finding the Fourth Proportional to 1,073.05, 1,610.11 and 525.22

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Solution

The fourth proportional to 1,073.05, 1,610.11 and 525.22 is: 788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.05 : 1,610.11 = 525.22 : x
  2. Step 2: Convert to fraction form
    1,073.05/1,610.11 = 525.22/x
  3. Step 3: Cross multiply
    1,073.05x = 1,610.11 × 525.22
  4. Step 4: Simplify right side
    1,073.05x = 845,661.97
  5. Step 5: Solve for x
    x = 845,661.97/1,073.05
  6. Step 6: Final answer
    x = 788.09

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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.