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Finding the Fourth Proportional to 351,998.60, 527,609.10 and 194,340.20

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Solution

The fourth proportional to 351,998.60, 527,609.10 and 194,340.20 is: 291,295.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,998.60 : 527,609.10 = 194,340.20 : x
  2. Step 2: Convert to fraction form
    351,998.60/527,609.10 = 194,340.20/x
  3. Step 3: Cross multiply
    351,998.60x = 527,609.10 × 194,340.20
  4. Step 4: Simplify right side
    351,998.60x = 102,535,658,015.82
  5. Step 5: Solve for x
    x = 102,535,658,015.82/351,998.60
  6. Step 6: Final answer
    x = 291,295.64

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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.