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Finding the Fourth Proportional to 317,113.92, 437,555.60 and 188,028.54

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Solution

The fourth proportional to 317,113.92, 437,555.60 and 188,028.54 is: 259,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,113.92 : 437,555.60 = 188,028.54 : x
  2. Step 2: Convert to fraction form
    317,113.92/437,555.60 = 188,028.54/x
  3. Step 3: Cross multiply
    317,113.92x = 437,555.60 × 188,028.54
  4. Step 4: Simplify right side
    317,113.92x = 82,272,940,636.82
  5. Step 5: Solve for x
    x = 82,272,940,636.82/317,113.92
  6. Step 6: Final answer
    x = 259,442.85

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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.