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Finding the Fourth Proportional to 355,686.54, 533,740.41 and 131,204.76

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Solution

The fourth proportional to 355,686.54, 533,740.41 and 131,204.76 is: 196,884.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,686.54 : 533,740.41 = 131,204.76 : x
  2. Step 2: Convert to fraction form
    355,686.54/533,740.41 = 131,204.76/x
  3. Step 3: Cross multiply
    355,686.54x = 533,740.41 × 131,204.76
  4. Step 4: Simplify right side
    355,686.54x = 70,029,282,396.35
  5. Step 5: Solve for x
    x = 70,029,282,396.35/355,686.54
  6. Step 6: Final answer
    x = 196,884.83

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1.5x scale

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.