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Finding the Fourth Proportional to 357,546.92, 493,390.50 and 196,408.76

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Solution

The fourth proportional to 357,546.92, 493,390.50 and 196,408.76 is: 271,030.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,546.92 : 493,390.50 = 196,408.76 : x
  2. Step 2: Convert to fraction form
    357,546.92/493,390.50 = 196,408.76/x
  3. Step 3: Cross multiply
    357,546.92x = 493,390.50 × 196,408.76
  4. Step 4: Simplify right side
    357,546.92x = 96,906,216,300.78
  5. Step 5: Solve for x
    x = 96,906,216,300.78/357,546.92
  6. Step 6: Final answer
    x = 271,030.77

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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.