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Finding the Fourth Proportional to 956.08, 1,435.20 and 696.48

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Solution

The fourth proportional to 956.08, 1,435.20 and 696.48 is: 1,045.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.08 : 1,435.20 = 696.48 : x
  2. Step 2: Convert to fraction form
    956.08/1,435.20 = 696.48/x
  3. Step 3: Cross multiply
    956.08x = 1,435.20 × 696.48
  4. Step 4: Simplify right side
    956.08x = 999,588.10
  5. Step 5: Solve for x
    x = 999,588.10/956.08
  6. Step 6: Final answer
    x = 1,045.51

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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.