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Finding the Fourth Proportional to 956.06, 1,431.48 and 626.16

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Solution

The fourth proportional to 956.06, 1,431.48 and 626.16 is: 937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.06 : 1,431.48 = 626.16 : x
  2. Step 2: Convert to fraction form
    956.06/1,431.48 = 626.16/x
  3. Step 3: Cross multiply
    956.06x = 1,431.48 × 626.16
  4. Step 4: Simplify right side
    956.06x = 896,335.52
  5. Step 5: Solve for x
    x = 896,335.52/956.06
  6. Step 6: Final answer
    x = 937.53

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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.