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Finding the Fourth Proportional to 664,286.60, 996,332.70 and 190,922.60

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Solution

The fourth proportional to 664,286.60, 996,332.70 and 190,922.60 is: 286,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,286.60 : 996,332.70 = 190,922.60 : x
  2. Step 2: Convert to fraction form
    664,286.60/996,332.70 = 190,922.60/x
  3. Step 3: Cross multiply
    664,286.60x = 996,332.70 × 190,922.60
  4. Step 4: Simplify right side
    664,286.60x = 190,222,429,549.02
  5. Step 5: Solve for x
    x = 190,222,429,549.02/664,286.60
  6. Step 6: Final answer
    x = 286,355.96

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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.