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Finding the Fourth Proportional to 439,149.12, 606,026.22 and 237,945.12

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Solution

The fourth proportional to 439,149.12, 606,026.22 and 237,945.12 is: 328,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,149.12 : 606,026.22 = 237,945.12 : x
  2. Step 2: Convert to fraction form
    439,149.12/606,026.22 = 237,945.12/x
  3. Step 3: Cross multiply
    439,149.12x = 606,026.22 × 237,945.12
  4. Step 4: Simplify right side
    439,149.12x = 144,200,981,641.05
  5. Step 5: Solve for x
    x = 144,200,981,641.05/439,149.12
  6. Step 6: Final answer
    x = 328,364.50

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Double scale
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Similar ratio
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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.