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Finding the Fourth Proportional to 835.52, 1,153.03 and 462.48

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Solution

The fourth proportional to 835.52, 1,153.03 and 462.48 is: 638.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.52 : 1,153.03 = 462.48 : x
  2. Step 2: Convert to fraction form
    835.52/1,153.03 = 462.48/x
  3. Step 3: Cross multiply
    835.52x = 1,153.03 × 462.48
  4. Step 4: Simplify right side
    835.52x = 533,258.10
  5. Step 5: Solve for x
    x = 533,258.10/835.52
  6. Step 6: Final answer
    x = 638.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.