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Finding the Fourth Proportional to 974.76, 1,461.79 and 700.03

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Solution

The fourth proportional to 974.76, 1,461.79 and 700.03 is: 1,049.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.76 : 1,461.79 = 700.03 : x
  2. Step 2: Convert to fraction form
    974.76/1,461.79 = 700.03/x
  3. Step 3: Cross multiply
    974.76x = 1,461.79 × 700.03
  4. Step 4: Simplify right side
    974.76x = 1,023,296.85
  5. Step 5: Solve for x
    x = 1,023,296.85/974.76
  6. Step 6: Final answer
    x = 1,049.79

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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.