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Finding the Fourth Proportional to 317,511.12, 476,197.56 and 159,571.92

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Solution

The fourth proportional to 317,511.12, 476,197.56 and 159,571.92 is: 239,323.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,511.12 : 476,197.56 = 159,571.92 : x
  2. Step 2: Convert to fraction form
    317,511.12/476,197.56 = 159,571.92/x
  3. Step 3: Cross multiply
    317,511.12x = 476,197.56 × 159,571.92
  4. Step 4: Simplify right side
    317,511.12x = 75,987,758,948.52
  5. Step 5: Solve for x
    x = 75,987,758,948.52/317,511.12
  6. Step 6: Final answer
    x = 239,323.14

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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.