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Finding the Fourth Proportional to 1,179.84, 1,761 and 1,041.45

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Solution

The fourth proportional to 1,179.84, 1,761 and 1,041.45 is: 1,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.84 : 1,761 = 1,041.45 : x
  2. Step 2: Convert to fraction form
    1,179.84/1,761 = 1,041.45/x
  3. Step 3: Cross multiply
    1,179.84x = 1,761 × 1,041.45
  4. Step 4: Simplify right side
    1,179.84x = 1,833,993.45
  5. Step 5: Solve for x
    x = 1,833,993.45/1,179.84
  6. Step 6: Final answer
    x = 1,554.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.