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Finding the Fourth Proportional to 228,906.60, 343,359.90 and 191,508.90

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Solution

The fourth proportional to 228,906.60, 343,359.90 and 191,508.90 is: 287,263.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,906.60 : 343,359.90 = 191,508.90 : x
  2. Step 2: Convert to fraction form
    228,906.60/343,359.90 = 191,508.90/x
  3. Step 3: Cross multiply
    228,906.60x = 343,359.90 × 191,508.90
  4. Step 4: Simplify right side
    228,906.60x = 65,756,476,753.11
  5. Step 5: Solve for x
    x = 65,756,476,753.11/228,906.60
  6. Step 6: Final answer
    x = 287,263.35

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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.