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Finding the Fourth Proportional to 321,314.20, 481,884.90 and 96,674.20

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Solution

The fourth proportional to 321,314.20, 481,884.90 and 96,674.20 is: 144,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,314.20 : 481,884.90 = 96,674.20 : x
  2. Step 2: Convert to fraction form
    321,314.20/481,884.90 = 96,674.20/x
  3. Step 3: Cross multiply
    321,314.20x = 481,884.90 × 96,674.20
  4. Step 4: Simplify right side
    321,314.20x = 46,585,837,199.58
  5. Step 5: Solve for x
    x = 46,585,837,199.58/321,314.20
  6. Step 6: Final answer
    x = 144,985.30

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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.