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Finding the Fourth Proportional to 1,040.84, 1,552.18 and 983.33

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Solution

The fourth proportional to 1,040.84, 1,552.18 and 983.33 is: 1,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.84 : 1,552.18 = 983.33 : x
  2. Step 2: Convert to fraction form
    1,040.84/1,552.18 = 983.33/x
  3. Step 3: Cross multiply
    1,040.84x = 1,552.18 × 983.33
  4. Step 4: Simplify right side
    1,040.84x = 1,526,305.16
  5. Step 5: Solve for x
    x = 1,526,305.16/1,040.84
  6. Step 6: Final answer
    x = 1,466.42

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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.