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Finding the Fourth Proportional to 481,461.57, 663,709.55 and 366,540.19

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Solution

The fourth proportional to 481,461.57, 663,709.55 and 366,540.19 is: 505,286.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,461.57 : 663,709.55 = 366,540.19 : x
  2. Step 2: Convert to fraction form
    481,461.57/663,709.55 = 366,540.19/x
  3. Step 3: Cross multiply
    481,461.57x = 663,709.55 × 366,540.19
  4. Step 4: Simplify right side
    481,461.57x = 243,276,221,069.84
  5. Step 5: Solve for x
    x = 243,276,221,069.84/481,461.57
  6. Step 6: Final answer
    x = 505,286.89

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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.