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Finding the Fourth Proportional to 1,773.95, 2,661.36 and 541.36

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Solution

The fourth proportional to 1,773.95, 2,661.36 and 541.36 is: 812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773.95 : 2,661.36 = 541.36 : x
  2. Step 2: Convert to fraction form
    1,773.95/2,661.36 = 541.36/x
  3. Step 3: Cross multiply
    1,773.95x = 2,661.36 × 541.36
  4. Step 4: Simplify right side
    1,773.95x = 1,440,747.20
  5. Step 5: Solve for x
    x = 1,440,747.20/1,773.95
  6. Step 6: Final answer
    x = 812.17

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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.