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Finding the Fourth Proportional to 974.96, 1,460.99 and 950.81

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Solution

The fourth proportional to 974.96, 1,460.99 and 950.81 is: 1,424.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.96 : 1,460.99 = 950.81 : x
  2. Step 2: Convert to fraction form
    974.96/1,460.99 = 950.81/x
  3. Step 3: Cross multiply
    974.96x = 1,460.99 × 950.81
  4. Step 4: Simplify right side
    974.96x = 1,389,123.90
  5. Step 5: Solve for x
    x = 1,389,123.90/974.96
  6. Step 6: Final answer
    x = 1,424.80

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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.