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Finding the Fourth Proportional to 354,063.20, 488,601.04 and 192,919.60

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Solution

The fourth proportional to 354,063.20, 488,601.04 and 192,919.60 is: 266,225.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,063.20 : 488,601.04 = 192,919.60 : x
  2. Step 2: Convert to fraction form
    354,063.20/488,601.04 = 192,919.60/x
  3. Step 3: Cross multiply
    354,063.20x = 488,601.04 × 192,919.60
  4. Step 4: Simplify right side
    354,063.20x = 94,260,717,196.38
  5. Step 5: Solve for x
    x = 94,260,717,196.38/354,063.20
  6. Step 6: Final answer
    x = 266,225.68

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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.