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Finding the Fourth Proportional to 952.56, 1,313.28 and 704.16

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Solution

The fourth proportional to 952.56, 1,313.28 and 704.16 is: 970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.56 : 1,313.28 = 704.16 : x
  2. Step 2: Convert to fraction form
    952.56/1,313.28 = 704.16/x
  3. Step 3: Cross multiply
    952.56x = 1,313.28 × 704.16
  4. Step 4: Simplify right side
    952.56x = 924,759.24
  5. Step 5: Solve for x
    x = 924,759.24/952.56
  6. Step 6: Final answer
    x = 970.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.