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Finding the Fourth Proportional to 439,183.46, 606,068.12 and 237,979.46

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Solution

The fourth proportional to 439,183.46, 606,068.12 and 237,979.46 is: 328,408.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,183.46 : 606,068.12 = 237,979.46 : x
  2. Step 2: Convert to fraction form
    439,183.46/606,068.12 = 237,979.46/x
  3. Step 3: Cross multiply
    439,183.46x = 606,068.12 × 237,979.46
  4. Step 4: Simplify right side
    439,183.46x = 144,231,759,700.58
  5. Step 5: Solve for x
    x = 144,231,759,700.58/439,183.46
  6. Step 6: Final answer
    x = 328,408.91

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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.