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Finding the Fourth Proportional to 716.66, 1,074.99 and 332.18

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Solution

The fourth proportional to 716.66, 1,074.99 and 332.18 is: 498.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.66 : 1,074.99 = 332.18 : x
  2. Step 2: Convert to fraction form
    716.66/1,074.99 = 332.18/x
  3. Step 3: Cross multiply
    716.66x = 1,074.99 × 332.18
  4. Step 4: Simplify right side
    716.66x = 357,090.18
  5. Step 5: Solve for x
    x = 357,090.18/716.66
  6. Step 6: Final answer
    x = 498.27

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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.