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Finding the Fourth Proportional to 953.95, 1,429.24 and 835.49

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Solution

The fourth proportional to 953.95, 1,429.24 and 835.49 is: 1,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.95 : 1,429.24 = 835.49 : x
  2. Step 2: Convert to fraction form
    953.95/1,429.24 = 835.49/x
  3. Step 3: Cross multiply
    953.95x = 1,429.24 × 835.49
  4. Step 4: Simplify right side
    953.95x = 1,194,117.21
  5. Step 5: Solve for x
    x = 1,194,117.21/953.95
  6. Step 6: Final answer
    x = 1,251.77

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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.