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Finding the Fourth Proportional to 956.82, 1,435.22 and 632.11

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Solution

The fourth proportional to 956.82, 1,435.22 and 632.11 is: 948.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.82 : 1,435.22 = 632.11 : x
  2. Step 2: Convert to fraction form
    956.82/1,435.22 = 632.11/x
  3. Step 3: Cross multiply
    956.82x = 1,435.22 × 632.11
  4. Step 4: Simplify right side
    956.82x = 907,209.74
  5. Step 5: Solve for x
    x = 907,209.74/956.82
  6. Step 6: Final answer
    x = 948.16

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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.