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Finding the Fourth Proportional to 283,772.39, 391,590.20 and 162,905.76

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Solution

The fourth proportional to 283,772.39, 391,590.20 and 162,905.76 is: 224,800.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,772.39 : 391,590.20 = 162,905.76 : x
  2. Step 2: Convert to fraction form
    283,772.39/391,590.20 = 162,905.76/x
  3. Step 3: Cross multiply
    283,772.39x = 391,590.20 × 162,905.76
  4. Step 4: Simplify right side
    283,772.39x = 63,792,299,546.82
  5. Step 5: Solve for x
    x = 63,792,299,546.82/283,772.39
  6. Step 6: Final answer
    x = 224,800.94

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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.