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Finding the Fourth Proportional to 588.92, 812.36 and 356

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Solution

The fourth proportional to 588.92, 812.36 and 356 is: 491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.92 : 812.36 = 356 : x
  2. Step 2: Convert to fraction form
    588.92/812.36 = 356/x
  3. Step 3: Cross multiply
    588.92x = 812.36 × 356
  4. Step 4: Simplify right side
    588.92x = 289,200.16
  5. Step 5: Solve for x
    x = 289,200.16/588.92
  6. Step 6: Final answer
    x = 491.07

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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.