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Finding the Fourth Proportional to 1,016.44, 1,402.70 and 568.36

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Solution

The fourth proportional to 1,016.44, 1,402.70 and 568.36 is: 784.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.44 : 1,402.70 = 568.36 : x
  2. Step 2: Convert to fraction form
    1,016.44/1,402.70 = 568.36/x
  3. Step 3: Cross multiply
    1,016.44x = 1,402.70 × 568.36
  4. Step 4: Simplify right side
    1,016.44x = 797,238.57
  5. Step 5: Solve for x
    x = 797,238.57/1,016.44
  6. Step 6: Final answer
    x = 784.34

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Why These Related Problems?

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