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Finding the Fourth Proportional to 322,778.54, 484,194.91 and 98,140.92

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Solution

The fourth proportional to 322,778.54, 484,194.91 and 98,140.92 is: 147,219.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,778.54 : 484,194.91 = 98,140.92 : x
  2. Step 2: Convert to fraction form
    322,778.54/484,194.91 = 98,140.92/x
  3. Step 3: Cross multiply
    322,778.54x = 484,194.91 × 98,140.92
  4. Step 4: Simplify right side
    322,778.54x = 47,519,334,230.36
  5. Step 5: Solve for x
    x = 47,519,334,230.36/322,778.54
  6. Step 6: Final answer
    x = 147,219.62

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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.