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Finding the Fourth Proportional to 704.28, 971.10 and 572.88

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Solution

The fourth proportional to 704.28, 971.10 and 572.88 is: 789.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.28 : 971.10 = 572.88 : x
  2. Step 2: Convert to fraction form
    704.28/971.10 = 572.88/x
  3. Step 3: Cross multiply
    704.28x = 971.10 × 572.88
  4. Step 4: Simplify right side
    704.28x = 556,323.77
  5. Step 5: Solve for x
    x = 556,323.77/704.28
  6. Step 6: Final answer
    x = 789.92

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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.