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Finding the Fourth Proportional to 967.37, 1,334.99 and 574.40

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Solution

The fourth proportional to 967.37, 1,334.99 and 574.40 is: 792.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.37 : 1,334.99 = 574.40 : x
  2. Step 2: Convert to fraction form
    967.37/1,334.99 = 574.40/x
  3. Step 3: Cross multiply
    967.37x = 1,334.99 × 574.40
  4. Step 4: Simplify right side
    967.37x = 766,808.71
  5. Step 5: Solve for x
    x = 766,808.71/967.37
  6. Step 6: Final answer
    x = 792.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.