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Finding the Fourth Proportional to 1,411.83, 1,949.00 and 992.54

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Solution

The fourth proportional to 1,411.83, 1,949.00 and 992.54 is: 1,370.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.83 : 1,949.00 = 992.54 : x
  2. Step 2: Convert to fraction form
    1,411.83/1,949.00 = 992.54/x
  3. Step 3: Cross multiply
    1,411.83x = 1,949.00 × 992.54
  4. Step 4: Simplify right side
    1,411.83x = 1,934,455.65
  5. Step 5: Solve for x
    x = 1,934,455.65/1,411.83
  6. Step 6: Final answer
    x = 1,370.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.