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Finding the Fourth Proportional to 351,115.60, 526,900.20 and 193,457.20

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Solution

The fourth proportional to 351,115.60, 526,900.20 and 193,457.20 is: 290,310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,115.60 : 526,900.20 = 193,457.20 : x
  2. Step 2: Convert to fraction form
    351,115.60/526,900.20 = 193,457.20/x
  3. Step 3: Cross multiply
    351,115.60x = 526,900.20 × 193,457.20
  4. Step 4: Simplify right side
    351,115.60x = 101,932,637,371.44
  5. Step 5: Solve for x
    x = 101,932,637,371.44/351,115.60
  6. Step 6: Final answer
    x = 290,310.76

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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.