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Finding the Fourth Proportional to 1,010.73, 1,394.94 and 568.77

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Solution

The fourth proportional to 1,010.73, 1,394.94 and 568.77 is: 784.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.73 : 1,394.94 = 568.77 : x
  2. Step 2: Convert to fraction form
    1,010.73/1,394.94 = 568.77/x
  3. Step 3: Cross multiply
    1,010.73x = 1,394.94 × 568.77
  4. Step 4: Simplify right side
    1,010.73x = 793,400.02
  5. Step 5: Solve for x
    x = 793,400.02/1,010.73
  6. Step 6: Final answer
    x = 784.98

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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.