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Finding the Fourth Proportional to 283,878.80, 391,799.56 and 170,763.92

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Solution

The fourth proportional to 283,878.80, 391,799.56 and 170,763.92 is: 235,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,878.80 : 391,799.56 = 170,763.92 : x
  2. Step 2: Convert to fraction form
    283,878.80/391,799.56 = 170,763.92/x
  3. Step 3: Cross multiply
    283,878.80x = 391,799.56 × 170,763.92
  4. Step 4: Simplify right side
    283,878.80x = 66,905,228,719.88
  5. Step 5: Solve for x
    x = 66,905,228,719.88/283,878.80
  6. Step 6: Final answer
    x = 235,682.37

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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.