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Finding the Fourth Proportional to 379,825.44, 569,770.56 and 99,342.24

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Solution

The fourth proportional to 379,825.44, 569,770.56 and 99,342.24 is: 149,021.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,825.44 : 569,770.56 = 99,342.24 : x
  2. Step 2: Convert to fraction form
    379,825.44/569,770.56 = 99,342.24/x
  3. Step 3: Cross multiply
    379,825.44x = 569,770.56 × 99,342.24
  4. Step 4: Simplify right side
    379,825.44x = 56,602,283,716.45
  5. Step 5: Solve for x
    x = 56,602,283,716.45/379,825.44
  6. Step 6: Final answer
    x = 149,021.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.