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Finding the Fourth Proportional to 342,020.44, 471,986.76 and 191,117.44

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Solution

The fourth proportional to 342,020.44, 471,986.76 and 191,117.44 is: 263,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,020.44 : 471,986.76 = 191,117.44 : x
  2. Step 2: Convert to fraction form
    342,020.44/471,986.76 = 191,117.44/x
  3. Step 3: Cross multiply
    342,020.44x = 471,986.76 × 191,117.44
  4. Step 4: Simplify right side
    342,020.44x = 90,204,901,285.09
  5. Step 5: Solve for x
    x = 90,204,901,285.09/342,020.44
  6. Step 6: Final answer
    x = 263,741.26

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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.