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Finding the Fourth Proportional to 971.64, 1,468.04 and 963

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Solution

The fourth proportional to 971.64, 1,468.04 and 963 is: 1,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    971.64 : 1,468.04 = 963 : x
  2. Step 2: Convert to fraction form
    971.64/1,468.04 = 963/x
  3. Step 3: Cross multiply
    971.64x = 1,468.04 × 963
  4. Step 4: Simplify right side
    971.64x = 1,413,717.71
  5. Step 5: Solve for x
    x = 1,413,717.71/971.64
  6. Step 6: Final answer
    x = 1,454.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.