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Finding the Fourth Proportional to 297,891.52, 447,155.60 and 120,514.48

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Solution

The fourth proportional to 297,891.52, 447,155.60 and 120,514.48 is: 180,900.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,891.52 : 447,155.60 = 120,514.48 : x
  2. Step 2: Convert to fraction form
    297,891.52/447,155.60 = 120,514.48/x
  3. Step 3: Cross multiply
    297,891.52x = 447,155.60 × 120,514.48
  4. Step 4: Simplify right side
    297,891.52x = 53,888,724,613.09
  5. Step 5: Solve for x
    x = 53,888,724,613.09/297,891.52
  6. Step 6: Final answer
    x = 180,900.50

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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.