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Finding the Fourth Proportional to 283,336.50, 391,031.96 and 211,591.97

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Solution

The fourth proportional to 283,336.50, 391,031.96 and 211,591.97 is: 292,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,336.50 : 391,031.96 = 211,591.97 : x
  2. Step 2: Convert to fraction form
    283,336.50/391,031.96 = 211,591.97/x
  3. Step 3: Cross multiply
    283,336.50x = 391,031.96 × 211,591.97
  4. Step 4: Simplify right side
    283,336.50x = 82,739,219,827.89
  5. Step 5: Solve for x
    x = 82,739,219,827.89/283,336.50
  6. Step 6: Final answer
    x = 292,017.51

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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.