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Finding the Fourth Proportional to 352,636.80, 486,639.78 and 191,494.56

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Solution

The fourth proportional to 352,636.80, 486,639.78 and 191,494.56 is: 264,263.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,636.80 : 486,639.78 = 191,494.56 : x
  2. Step 2: Convert to fraction form
    352,636.80/486,639.78 = 191,494.56/x
  3. Step 3: Cross multiply
    352,636.80x = 486,639.78 × 191,494.56
  4. Step 4: Simplify right side
    352,636.80x = 93,188,870,549.60
  5. Step 5: Solve for x
    x = 93,188,870,549.60/352,636.80
  6. Step 6: Final answer
    x = 264,263.03

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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.