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Finding the Fourth Proportional to 974.08, 1,460.64 and 696.28

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Solution

The fourth proportional to 974.08, 1,460.64 and 696.28 is: 1,044.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.08 : 1,460.64 = 696.28 : x
  2. Step 2: Convert to fraction form
    974.08/1,460.64 = 696.28/x
  3. Step 3: Cross multiply
    974.08x = 1,460.64 × 696.28
  4. Step 4: Simplify right side
    974.08x = 1,017,014.42
  5. Step 5: Solve for x
    x = 1,017,014.42/974.08
  6. Step 6: Final answer
    x = 1,044.08

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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.