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Finding the Fourth Proportional to 283,361.52, 391,039.48 and 156,037.36

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Solution

The fourth proportional to 283,361.52, 391,039.48 and 156,037.36 is: 215,331.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,361.52 : 391,039.48 = 156,037.36 : x
  2. Step 2: Convert to fraction form
    283,361.52/391,039.48 = 156,037.36/x
  3. Step 3: Cross multiply
    283,361.52x = 391,039.48 × 156,037.36
  4. Step 4: Simplify right side
    283,361.52x = 61,016,768,114.97
  5. Step 5: Solve for x
    x = 61,016,768,114.97/283,361.52
  6. Step 6: Final answer
    x = 215,331.88

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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.