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Finding the Fourth Proportional to 283,385.60, 391,086.61 and 160,886.57

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Solution

The fourth proportional to 283,385.60, 391,086.61 and 160,886.57 is: 222,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,385.60 : 391,086.61 = 160,886.57 : x
  2. Step 2: Convert to fraction form
    283,385.60/391,086.61 = 160,886.57/x
  3. Step 3: Cross multiply
    283,385.60x = 391,086.61 × 160,886.57
  4. Step 4: Simplify right side
    283,385.60x = 62,920,584,003.03
  5. Step 5: Solve for x
    x = 62,920,584,003.03/283,385.60
  6. Step 6: Final answer
    x = 222,031.69

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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.