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Finding the Fourth Proportional to 1,116.97, 1,673.21 and 532.54

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Solution

The fourth proportional to 1,116.97, 1,673.21 and 532.54 is: 797.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.97 : 1,673.21 = 532.54 : x
  2. Step 2: Convert to fraction form
    1,116.97/1,673.21 = 532.54/x
  3. Step 3: Cross multiply
    1,116.97x = 1,673.21 × 532.54
  4. Step 4: Simplify right side
    1,116.97x = 891,045.26
  5. Step 5: Solve for x
    x = 891,045.26/1,116.97
  6. Step 6: Final answer
    x = 797.74

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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.