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Finding the Fourth Proportional to 725.04, 1,084.56 and 464.64

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Solution

The fourth proportional to 725.04, 1,084.56 and 464.64 is: 695.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    725.04 : 1,084.56 = 464.64 : x
  2. Step 2: Convert to fraction form
    725.04/1,084.56 = 464.64/x
  3. Step 3: Cross multiply
    725.04x = 1,084.56 × 464.64
  4. Step 4: Simplify right side
    725.04x = 503,929.96
  5. Step 5: Solve for x
    x = 503,929.96/725.04
  6. Step 6: Final answer
    x = 695.04

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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.