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Finding the Fourth Proportional to 228,672.60, 343,008.90 and 197,179.80

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Solution

The fourth proportional to 228,672.60, 343,008.90 and 197,179.80 is: 295,769.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,672.60 : 343,008.90 = 197,179.80 : x
  2. Step 2: Convert to fraction form
    228,672.60/343,008.90 = 197,179.80/x
  3. Step 3: Cross multiply
    228,672.60x = 343,008.90 × 197,179.80
  4. Step 4: Simplify right side
    228,672.60x = 67,634,426,300.22
  5. Step 5: Solve for x
    x = 67,634,426,300.22/228,672.60
  6. Step 6: Final answer
    x = 295,769.70

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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.