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Finding the Fourth Proportional to 1,010.96, 1,394.92 and 568.84

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Solution

The fourth proportional to 1,010.96, 1,394.92 and 568.84 is: 784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.96 : 1,394.92 = 568.84 : x
  2. Step 2: Convert to fraction form
    1,010.96/1,394.92 = 568.84/x
  3. Step 3: Cross multiply
    1,010.96x = 1,394.92 × 568.84
  4. Step 4: Simplify right side
    1,010.96x = 793,486.29
  5. Step 5: Solve for x
    x = 793,486.29/1,010.96
  6. Step 6: Final answer
    x = 784.88

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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.