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Finding the Fourth Proportional to 953.56, 1,430.96 and 466.34

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Solution

The fourth proportional to 953.56, 1,430.96 and 466.34 is: 699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.56 : 1,430.96 = 466.34 : x
  2. Step 2: Convert to fraction form
    953.56/1,430.96 = 466.34/x
  3. Step 3: Cross multiply
    953.56x = 1,430.96 × 466.34
  4. Step 4: Simplify right side
    953.56x = 667,313.89
  5. Step 5: Solve for x
    x = 667,313.89/953.56
  6. Step 6: Final answer
    x = 699.81

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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.