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Finding the Fourth Proportional to 283,644.95, 391,425.50 and 162,783.44

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Solution

The fourth proportional to 283,644.95, 391,425.50 and 162,783.44 is: 224,638.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,644.95 : 391,425.50 = 162,783.44 : x
  2. Step 2: Convert to fraction form
    283,644.95/391,425.50 = 162,783.44/x
  3. Step 3: Cross multiply
    283,644.95x = 391,425.50 × 162,783.44
  4. Step 4: Simplify right side
    283,644.95x = 63,717,586,622.68
  5. Step 5: Solve for x
    x = 63,717,586,622.68/283,644.95
  6. Step 6: Final answer
    x = 224,638.54

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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.