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Finding the Fourth Proportional to 283,934.44, 391,830.68 and 156,609.76

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Solution

The fourth proportional to 283,934.44, 391,830.68 and 156,609.76 is: 216,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,934.44 : 391,830.68 = 156,609.76 : x
  2. Step 2: Convert to fraction form
    283,934.44/391,830.68 = 156,609.76/x
  3. Step 3: Cross multiply
    283,934.44x = 391,830.68 × 156,609.76
  4. Step 4: Simplify right side
    283,934.44x = 61,364,508,755.44
  5. Step 5: Solve for x
    x = 61,364,508,755.44/283,934.44
  6. Step 6: Final answer
    x = 216,122.10

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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.