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Finding the Fourth Proportional to 317,007.63, 437,515.28 and 196,187.82

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Solution

The fourth proportional to 317,007.63, 437,515.28 and 196,187.82 is: 270,766.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,007.63 : 437,515.28 = 196,187.82 : x
  2. Step 2: Convert to fraction form
    317,007.63/437,515.28 = 196,187.82/x
  3. Step 3: Cross multiply
    317,007.63x = 437,515.28 × 196,187.82
  4. Step 4: Simplify right side
    317,007.63x = 85,835,168,999.89
  5. Step 5: Solve for x
    x = 85,835,168,999.89/317,007.63
  6. Step 6: Final answer
    x = 270,766.89

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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.