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Finding the Fourth Proportional to 262,373.80, 393,560.70 and 84,886.60

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Solution

The fourth proportional to 262,373.80, 393,560.70 and 84,886.60 is: 127,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,373.80 : 393,560.70 = 84,886.60 : x
  2. Step 2: Convert to fraction form
    262,373.80/393,560.70 = 84,886.60/x
  3. Step 3: Cross multiply
    262,373.80x = 393,560.70 × 84,886.60
  4. Step 4: Simplify right side
    262,373.80x = 33,408,029,716.62
  5. Step 5: Solve for x
    x = 33,408,029,716.62/262,373.80
  6. Step 6: Final answer
    x = 127,329.90

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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.