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Finding the Fourth Proportional to 953.12, 1,314.24 and 704.10

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Solution

The fourth proportional to 953.12, 1,314.24 and 704.10 is: 970.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.12 : 1,314.24 = 704.10 : x
  2. Step 2: Convert to fraction form
    953.12/1,314.24 = 704.10/x
  3. Step 3: Cross multiply
    953.12x = 1,314.24 × 704.10
  4. Step 4: Simplify right side
    953.12x = 925,356.38
  5. Step 5: Solve for x
    x = 925,356.38/953.12
  6. Step 6: Final answer
    x = 970.87

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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.