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Finding the Fourth Proportional to 354,247.76, 488,861.40 and 193,103.12

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Solution

The fourth proportional to 354,247.76, 488,861.40 and 193,103.12 is: 266,482.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,247.76 : 488,861.40 = 193,103.12 : x
  2. Step 2: Convert to fraction form
    354,247.76/488,861.40 = 193,103.12/x
  3. Step 3: Cross multiply
    354,247.76x = 488,861.40 × 193,103.12
  4. Step 4: Simplify right side
    354,247.76x = 94,400,661,587.57
  5. Step 5: Solve for x
    x = 94,400,661,587.57/354,247.76
  6. Step 6: Final answer
    x = 266,482.03

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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.