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Finding the Fourth Proportional to 317,005.63, 437,512.52 and 196,185.83

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Solution

The fourth proportional to 317,005.63, 437,512.52 and 196,185.83 is: 270,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,005.63 : 437,512.52 = 196,185.83 : x
  2. Step 2: Convert to fraction form
    317,005.63/437,512.52 = 196,185.83/x
  3. Step 3: Cross multiply
    317,005.63x = 437,512.52 × 196,185.83
  4. Step 4: Simplify right side
    317,005.63x = 85,833,753,703.10
  5. Step 5: Solve for x
    x = 85,833,753,703.10/317,005.63
  6. Step 6: Final answer
    x = 270,764.13

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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.