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Finding the Fourth Proportional to 262,910.70, 393,847.65 and 157,416.30

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Solution

The fourth proportional to 262,910.70, 393,847.65 and 157,416.30 is: 235,814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,910.70 : 393,847.65 = 157,416.30 : x
  2. Step 2: Convert to fraction form
    262,910.70/393,847.65 = 157,416.30/x
  3. Step 3: Cross multiply
    262,910.70x = 393,847.65 × 157,416.30
  4. Step 4: Simplify right side
    262,910.70x = 61,998,039,826.70
  5. Step 5: Solve for x
    x = 61,998,039,826.70/262,910.70
  6. Step 6: Final answer
    x = 235,814.06

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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.