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Finding the Fourth Proportional to 1,709.18, 2,358.25 and 963.14

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Solution

The fourth proportional to 1,709.18, 2,358.25 and 963.14 is: 1,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.18 : 2,358.25 = 963.14 : x
  2. Step 2: Convert to fraction form
    1,709.18/2,358.25 = 963.14/x
  3. Step 3: Cross multiply
    1,709.18x = 2,358.25 × 963.14
  4. Step 4: Simplify right side
    1,709.18x = 2,271,325.57
  5. Step 5: Solve for x
    x = 2,271,325.57/1,709.18
  6. Step 6: Final answer
    x = 1,328.90

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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.