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Finding the Fourth Proportional to 956.16, 1,435.12 and 494.26

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Solution

The fourth proportional to 956.16, 1,435.12 and 494.26 is: 741.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.16 : 1,435.12 = 494.26 : x
  2. Step 2: Convert to fraction form
    956.16/1,435.12 = 494.26/x
  3. Step 3: Cross multiply
    956.16x = 1,435.12 × 494.26
  4. Step 4: Simplify right side
    956.16x = 709,317.59
  5. Step 5: Solve for x
    x = 709,317.59/956.16
  6. Step 6: Final answer
    x = 741.84

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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.