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Finding the Fourth Proportional to 256,195.66, 383,779.41 and 235,268.77

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Solution

The fourth proportional to 256,195.66, 383,779.41 and 235,268.77 is: 352,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,195.66 : 383,779.41 = 235,268.77 : x
  2. Step 2: Convert to fraction form
    256,195.66/383,779.41 = 235,268.77/x
  3. Step 3: Cross multiply
    256,195.66x = 383,779.41 × 235,268.77
  4. Step 4: Simplify right side
    256,195.66x = 90,291,309,742.03
  5. Step 5: Solve for x
    x = 90,291,309,742.03/256,195.66
  6. Step 6: Final answer
    x = 352,431.07

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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.