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Finding the Fourth Proportional to 718.02, 1,076.64 and 333

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Solution

The fourth proportional to 718.02, 1,076.64 and 333 is: 499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    718.02 : 1,076.64 = 333 : x
  2. Step 2: Convert to fraction form
    718.02/1,076.64 = 333/x
  3. Step 3: Cross multiply
    718.02x = 1,076.64 × 333
  4. Step 4: Simplify right side
    718.02x = 358,521.12
  5. Step 5: Solve for x
    x = 358,521.12/718.02
  6. Step 6: Final answer
    x = 499.32

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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.