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Finding the Fourth Proportional to 953.28, 1,435.56 and 833

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Solution

The fourth proportional to 953.28, 1,435.56 and 833 is: 1,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.28 : 1,435.56 = 833 : x
  2. Step 2: Convert to fraction form
    953.28/1,435.56 = 833/x
  3. Step 3: Cross multiply
    953.28x = 1,435.56 × 833
  4. Step 4: Simplify right side
    953.28x = 1,195,821.48
  5. Step 5: Solve for x
    x = 1,195,821.48/953.28
  6. Step 6: Final answer
    x = 1,254.43

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.