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Finding the Fourth Proportional to 283,385.88, 391,059.90 and 162,440.46

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Solution

The fourth proportional to 283,385.88, 391,059.90 and 162,440.46 is: 224,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,385.88 : 391,059.90 = 162,440.46 : x
  2. Step 2: Convert to fraction form
    283,385.88/391,059.90 = 162,440.46/x
  3. Step 3: Cross multiply
    283,385.88x = 391,059.90 × 162,440.46
  4. Step 4: Simplify right side
    283,385.88x = 63,523,950,043.55
  5. Step 5: Solve for x
    x = 63,523,950,043.55/283,385.88
  6. Step 6: Final answer
    x = 224,160.60

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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.