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Finding the Fourth Proportional to 446,325, 615,984.66 and 276,584.64

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Solution

The fourth proportional to 446,325, 615,984.66 and 276,584.64 is: 381,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,325 : 615,984.66 = 276,584.64 : x
  2. Step 2: Convert to fraction form
    446,325/615,984.66 = 276,584.64/x
  3. Step 3: Cross multiply
    446,325x = 615,984.66 × 276,584.64
  4. Step 4: Simplify right side
    446,325x = 170,371,895,431.62
  5. Step 5: Solve for x
    x = 170,371,895,431.62/446,325
  6. Step 6: Final answer
    x = 381,721.61

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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.