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Finding the Fourth Proportional to 951.44, 1,426.35 and 906.08

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Solution

The fourth proportional to 951.44, 1,426.35 and 906.08 is: 1,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.44 : 1,426.35 = 906.08 : x
  2. Step 2: Convert to fraction form
    951.44/1,426.35 = 906.08/x
  3. Step 3: Cross multiply
    951.44x = 1,426.35 × 906.08
  4. Step 4: Simplify right side
    951.44x = 1,292,387.21
  5. Step 5: Solve for x
    x = 1,292,387.21/951.44
  6. Step 6: Final answer
    x = 1,358.35

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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.