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Finding the Fourth Proportional to 228,031.20, 342,046.80 and 224,920.80

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Solution

The fourth proportional to 228,031.20, 342,046.80 and 224,920.80 is: 337,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,031.20 : 342,046.80 = 224,920.80 : x
  2. Step 2: Convert to fraction form
    228,031.20/342,046.80 = 224,920.80/x
  3. Step 3: Cross multiply
    228,031.20x = 342,046.80 × 224,920.80
  4. Step 4: Simplify right side
    228,031.20x = 76,933,439,893.44
  5. Step 5: Solve for x
    x = 76,933,439,893.44/228,031.20
  6. Step 6: Final answer
    x = 337,381.20

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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.