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Finding the Fourth Proportional to 357,819.48, 493,780.86 and 196,674.84

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Solution

The fourth proportional to 357,819.48, 493,780.86 and 196,674.84 is: 271,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,819.48 : 493,780.86 = 196,674.84 : x
  2. Step 2: Convert to fraction form
    357,819.48/493,780.86 = 196,674.84/x
  3. Step 3: Cross multiply
    357,819.48x = 493,780.86 × 196,674.84
  4. Step 4: Simplify right side
    357,819.48x = 97,114,271,635.56
  5. Step 5: Solve for x
    x = 97,114,271,635.56/357,819.48
  6. Step 6: Final answer
    x = 271,405.77

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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.