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Finding the Fourth Proportional to 463,675.44, 639,243.72 and 396,414.84

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Solution

The fourth proportional to 463,675.44, 639,243.72 and 396,414.84 is: 546,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,675.44 : 639,243.72 = 396,414.84 : x
  2. Step 2: Convert to fraction form
    463,675.44/639,243.72 = 396,414.84/x
  3. Step 3: Cross multiply
    463,675.44x = 639,243.72 × 396,414.84
  4. Step 4: Simplify right side
    463,675.44x = 253,405,696,984.81
  5. Step 5: Solve for x
    x = 253,405,696,984.81/463,675.44
  6. Step 6: Final answer
    x = 546,515.25

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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.