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Finding the Fourth Proportional to 967.71, 1,451.58 and 695.55

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Solution

The fourth proportional to 967.71, 1,451.58 and 695.55 is: 1,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.71 : 1,451.58 = 695.55 : x
  2. Step 2: Convert to fraction form
    967.71/1,451.58 = 695.55/x
  3. Step 3: Cross multiply
    967.71x = 1,451.58 × 695.55
  4. Step 4: Simplify right side
    967.71x = 1,009,646.47
  5. Step 5: Solve for x
    x = 1,009,646.47/967.71
  6. Step 6: Final answer
    x = 1,043.34

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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.