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Finding the Fourth Proportional to 283,953.60, 391,910.40 and 170,812.80

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Solution

The fourth proportional to 283,953.60, 391,910.40 and 170,812.80 is: 235,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,953.60 : 391,910.40 = 170,812.80 : x
  2. Step 2: Convert to fraction form
    283,953.60/391,910.40 = 170,812.80/x
  3. Step 3: Cross multiply
    283,953.60x = 391,910.40 × 170,812.80
  4. Step 4: Simplify right side
    283,953.60x = 66,943,312,773.12
  5. Step 5: Solve for x
    x = 66,943,312,773.12/283,953.60
  6. Step 6: Final answer
    x = 235,754.41

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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.