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Finding the Fourth Proportional to 317,154.42, 437,249.69 and 251,959.56

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Solution

The fourth proportional to 317,154.42, 437,249.69 and 251,959.56 is: 347,367.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,154.42 : 437,249.69 = 251,959.56 : x
  2. Step 2: Convert to fraction form
    317,154.42/437,249.69 = 251,959.56/x
  3. Step 3: Cross multiply
    317,154.42x = 437,249.69 × 251,959.56
  4. Step 4: Simplify right side
    317,154.42x = 110,169,241,772.12
  5. Step 5: Solve for x
    x = 110,169,241,772.12/317,154.42
  6. Step 6: Final answer
    x = 347,367.83

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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.