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Finding the Fourth Proportional to 1,411.84, 1,948.46 and 822.36

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Solution

The fourth proportional to 1,411.84, 1,948.46 and 822.36 is: 1,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.84 : 1,948.46 = 822.36 : x
  2. Step 2: Convert to fraction form
    1,411.84/1,948.46 = 822.36/x
  3. Step 3: Cross multiply
    1,411.84x = 1,948.46 × 822.36
  4. Step 4: Simplify right side
    1,411.84x = 1,602,335.57
  5. Step 5: Solve for x
    x = 1,602,335.57/1,411.84
  6. Step 6: Final answer
    x = 1,134.93

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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.