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Finding the Fourth Proportional to 937.37, 1,409.10 and 527.31

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Solution

The fourth proportional to 937.37, 1,409.10 and 527.31 is: 792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.37 : 1,409.10 = 527.31 : x
  2. Step 2: Convert to fraction form
    937.37/1,409.10 = 527.31/x
  3. Step 3: Cross multiply
    937.37x = 1,409.10 × 527.31
  4. Step 4: Simplify right side
    937.37x = 743,030.54
  5. Step 5: Solve for x
    x = 743,030.54/937.37
  6. Step 6: Final answer
    x = 792.67

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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.