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Finding the Fourth Proportional to 976.14, 1,464.60 and 586.88

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Solution

The fourth proportional to 976.14, 1,464.60 and 586.88 is: 880.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.14 : 1,464.60 = 586.88 : x
  2. Step 2: Convert to fraction form
    976.14/1,464.60 = 586.88/x
  3. Step 3: Cross multiply
    976.14x = 1,464.60 × 586.88
  4. Step 4: Simplify right side
    976.14x = 859,544.45
  5. Step 5: Solve for x
    x = 859,544.45/976.14
  6. Step 6: Final answer
    x = 880.55

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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.