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Finding the Fourth Proportional to 449,412.39, 674,120.43 and 112,452.12

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Solution

The fourth proportional to 449,412.39, 674,120.43 and 112,452.12 is: 168,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,412.39 : 674,120.43 = 112,452.12 : x
  2. Step 2: Convert to fraction form
    449,412.39/674,120.43 = 112,452.12/x
  3. Step 3: Cross multiply
    449,412.39x = 674,120.43 × 112,452.12
  4. Step 4: Simplify right side
    449,412.39x = 75,806,271,488.81
  5. Step 5: Solve for x
    x = 75,806,271,488.81/449,412.39
  6. Step 6: Final answer
    x = 168,678.64

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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.